diff --git a/doc/api/assert.md b/doc/api/assert.md
index 873f03e77553b2..e02829918c8b45 100644
--- a/doc/api/assert.md
+++ b/doc/api/assert.md
@@ -199,7 +199,7 @@ added: v0.1.21
 * `actual` {any}
 * `expected` {any}
 * `message` {any}
-* `operator` {String}
+* `operator` {string}
 
 Throws an `AssertionError`. If `message` is falsy, the error message is set as
 the values of `actual` and `expected` separated by the provided `operator`.
diff --git a/doc/api/buffer.md b/doc/api/buffer.md
index 228dc4d22af46f..4b3f762f80740c 100644
--- a/doc/api/buffer.md
+++ b/doc/api/buffer.md
@@ -350,8 +350,8 @@ deprecated: v6.0.0
 
 * `arrayBuffer` {ArrayBuffer} An [`ArrayBuffer`] or the `.buffer` property of a
   [`TypedArray`].
-* `byteOffset` {Integer} Index of first byte to expose. **Default:** `0`
-* `length` {Integer} Number of bytes to expose.
+* `byteOffset` {integer} Index of first byte to expose. **Default:** `0`
+* `length` {integer} Number of bytes to expose.
   **Default:** `arrayBuffer.length - byteOffset`
 
 This creates a view of the [`ArrayBuffer`] without copying the underlying
@@ -391,7 +391,7 @@ deprecated: v6.0.0
 > Stability: 0 - Deprecated: Use [`Buffer.alloc()`] instead (also see
 > [`Buffer.allocUnsafe()`]).
 
-* `size` {Integer} The desired length of the new `Buffer`
+* `size` {integer} The desired length of the new `Buffer`
 
 Allocates a new `Buffer` of `size` bytes.  The `size` must be less than or equal
 to the value of [`buffer.kMaxLength`]. Otherwise, a [`RangeError`] is thrown.
@@ -453,8 +453,8 @@ console.log(buf2.toString());
 added: v5.10.0
 -->
 
-* `size` {Integer} The desired length of the new `Buffer`
-* `fill` {string | Buffer | Integer} A value to pre-fill the new `Buffer` with.
+* `size` {integer} The desired length of the new `Buffer`
+* `fill` {string|Buffer|integer} A value to pre-fill the new `Buffer` with.
   **Default:** `0`
 * `encoding` {string} If `fill` is a string, this is its encoding.
   **Default:** `'utf8'`
@@ -510,7 +510,7 @@ A `TypeError` will be thrown if `size` is not a number.
 added: v5.10.0
 -->
 
-* `size` {Integer} The desired length of the new `Buffer`
+* `size` {integer} The desired length of the new `Buffer`
 
 Allocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must
 be less than or equal to the value of [`buffer.kMaxLength`]. Otherwise, a
@@ -556,7 +556,7 @@ additional performance that [`Buffer.allocUnsafe()`] provides.
 added: v5.10.0
 -->
 
-* `size` {Integer} The desired length of the new `Buffer`
+* `size` {integer} The desired length of the new `Buffer`
 
 Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The
 `size` must be less than or equal to the value of [`buffer.kMaxLength`].
@@ -609,11 +609,11 @@ A `TypeError` will be thrown if `size` is not a number.
 added: v0.1.90
 -->
 
-* `string` {string | Buffer | TypedArray | DataView | ArrayBuffer} A value to
+* `string` {string|Buffer|TypedArray|DataView|ArrayBuffer} A value to
   calculate the length of
 * `encoding` {string} If `string` is a string, this is its encoding.
   **Default:** `'utf8'`
-* Returns: {Integer} The number of bytes contained within `string`
+* Returns: {integer} The number of bytes contained within `string`
 
 Returns the actual byte length of a string. This is not the same as
 [`String.prototype.length`] since that returns the number of *characters* in
@@ -645,7 +645,7 @@ added: v0.11.13
 
 * `buf1` {Buffer}
 * `buf2` {Buffer}
-* Returns: {Integer}
+* Returns: {integer}
 
 Compares `buf1` to `buf2` typically for the purpose of sorting arrays of
 `Buffer` instances. This is equivalent to calling
@@ -669,7 +669,7 @@ added: v0.7.11
 -->
 
 * `list` {Array} List of `Buffer` instances to concat
-* `totalLength` {Integer} Total length of the `Buffer` instances in `list`
+* `totalLength` {integer} Total length of the `Buffer` instances in `list`
   when concatenated
 * Returns: {Buffer}
 
@@ -729,8 +729,8 @@ added: v5.10.0
 
 * `arrayBuffer` {ArrayBuffer} An [`ArrayBuffer`] or the `.buffer` property of a
   [`TypedArray`].
-* `byteOffset` {Integer} Index of first byte to expose. **Default:** `0`
-* `length` {Integer} Number of bytes to expose.
+* `byteOffset` {integer} Index of first byte to expose. **Default:** `0`
+* `length` {integer} Number of bytes to expose.
   **Default:** `arrayBuffer.length - byteOffset`
 
 This creates a view of the [`ArrayBuffer`] without copying the underlying
@@ -837,7 +837,7 @@ added: v0.1.101
 -->
 
 * `obj` {Object}
-* Returns: {Boolean}
+* Returns: {boolean}
 
 Returns `true` if `obj` is a `Buffer`, `false` otherwise.
 
@@ -847,7 +847,7 @@ added: v0.9.1
 -->
 
 * `encoding` {string} A character encoding name to check
-* Returns: {Boolean}
+* Returns: {boolean}
 
 Returns `true` if `encoding` contains a supported character encoding, or `false`
 otherwise.
@@ -857,7 +857,7 @@ otherwise.
 added: v0.11.3
 -->
 
-* {Integer} **Default:** `8192`
+* {integer} **Default:** `8192`
 
 This is the number of bytes used to determine the size of pre-allocated, internal
 `Buffer` instances used for pooling. This value may be modified.
@@ -896,17 +896,17 @@ added: v0.11.13
 -->
 
 * `target` {Buffer} A `Buffer` to compare to
-* `targetStart` {Integer} The offset within `target` at which to begin
+* `targetStart` {integer} The offset within `target` at which to begin
   comparison. **Default:** `0`
-* `targetEnd` {Integer} The offset with `target` at which to end comparison
+* `targetEnd` {integer} The offset with `target` at which to end comparison
   (not inclusive). Ignored when `targetStart` is `undefined`.
   **Default:** `target.length`
-* `sourceStart` {Integer} The offset within `buf` at which to begin comparison.
+* `sourceStart` {integer} The offset within `buf` at which to begin comparison.
   Ignored when `targetStart` is `undefined`. **Default:** `0`
-* `sourceEnd` {Integer} The offset within `buf` at which to end comparison
+* `sourceEnd` {integer} The offset within `buf` at which to end comparison
   (not inclusive). Ignored when `targetStart` is `undefined`.
   **Default:** [`buf.length`]
-* Returns: {Integer}
+* Returns: {integer}
 
 Compares `buf` with `target` and returns a number indicating whether `buf`
 comes before, after, or is the same as `target` in sort order.
@@ -972,13 +972,13 @@ added: v0.1.90
 -->
 
 * `target` {Buffer|Uint8Array} A `Buffer` or [`Uint8Array`] to copy into.
-* `targetStart` {Integer} The offset within `target` at which to begin
+* `targetStart` {integer} The offset within `target` at which to begin
   copying to. **Default:** `0`
-* `sourceStart` {Integer} The offset within `buf` at which to begin copying from.
+* `sourceStart` {integer} The offset within `buf` at which to begin copying from.
   Ignored when `targetStart` is `undefined`. **Default:** `0`
-* `sourceEnd` {Integer} The offset within `buf` at which to stop copying (not
+* `sourceEnd` {integer} The offset within `buf` at which to stop copying (not
   inclusive). Ignored when `sourceStart` is `undefined`. **Default:** [`buf.length`]
-* Returns: {Integer} The number of bytes copied.
+* Returns: {integer} The number of bytes copied.
 
 Copies data from a region of `buf` to a region in `target` even if the `target`
 memory region overlaps with `buf`.
@@ -1051,7 +1051,7 @@ added: v0.11.13
 -->
 
 * `otherBuffer` {Buffer} A `Buffer` to compare to
-* Returns: {Boolean}
+* Returns: {boolean}
 
 Returns `true` if both `buf` and `otherBuffer` have exactly the same bytes,
 `false` otherwise.
@@ -1075,9 +1075,9 @@ console.log(buf1.equals(buf3));
 added: v0.5.0
 -->
 
-* `value` {string | Buffer | Integer} The value to fill `buf` with
-* `offset` {Integer} Where to start filling `buf`. **Default:** `0`
-* `end` {Integer} Where to stop filling `buf` (not inclusive). **Default:** [`buf.length`]
+* `value` {string|Buffer|integer} The value to fill `buf` with
+* `offset` {integer} Where to start filling `buf`. **Default:** `0`
+* `end` {integer} Where to stop filling `buf` (not inclusive). **Default:** [`buf.length`]
 * `encoding` {string} If `value` is a string, this is its encoding.
   **Default:** `'utf8'`
 * Returns: {Buffer} A reference to `buf`
@@ -1112,11 +1112,11 @@ console.log(Buffer.allocUnsafe(3).fill('\u0222'));
 added: v5.3.0
 -->
 
-* `value` {string | Buffer | Integer} What to search for
-* `byteOffset` {Integer} Where to begin searching in `buf`. **Default:** `0`
+* `value` {string|Buffer|integer} What to search for
+* `byteOffset` {integer} Where to begin searching in `buf`. **Default:** `0`
 * `encoding` {string} If `value` is a string, this is its encoding.
   **Default:** `'utf8'`
-* Returns: {Boolean} `true` if `value` was found in `buf`, `false` otherwise
+* Returns: {boolean} `true` if `value` was found in `buf`, `false` otherwise
 
 Equivalent to [`buf.indexOf() !== -1`][`buf.indexOf()`].
 
@@ -1153,11 +1153,11 @@ console.log(buf.includes('this', 4));
 added: v1.5.0
 -->
 
-* `value` {String | Buffer | Integer} What to search for
-* `byteOffset` {Integer} Where to begin searching in `buf`. **Default:** `0`
+* `value` {string | Buffer | integer} What to search for
+* `byteOffset` {integer} Where to begin searching in `buf`. **Default:** `0`
 * `encoding` {string} If `value` is a string, this is its encoding.
   **Default:** `'utf8'`
-* Returns: {Integer} The index of the first occurrence of `value` in `buf` or `-1`
+* Returns: {integer} The index of the first occurrence of `value` in `buf` or `-1`
   if `buf` does not contain `value`
 
 If `value` is:
@@ -1299,12 +1299,12 @@ for (const key of buf.keys()) {
 added: v6.0.0
 -->
 
-* `value` {String | Buffer | Integer} What to search for
-* `byteOffset` {Integer} Where to begin searching in `buf`.
+* `value` {string | Buffer | integer} What to search for
+* `byteOffset` {integer} Where to begin searching in `buf`.
   **Default:** [`buf.length`]` - 1`
 * `encoding` {string} If `value` is a string, this is its encoding.
   **Default:** `'utf8'`
-* Returns: {Integer} The index of the last occurrence of `value` in `buf` or `-1`
+* Returns: {integer} The index of the last occurrence of `value` in `buf` or `-1`
   if `buf` does not contain `value`
 
 Identical to [`buf.indexOf()`], except `buf` is searched from back to front
@@ -1379,7 +1379,7 @@ console.log(b.lastIndexOf('b', []));
 added: v0.1.90
 -->
 
-* {Integer}
+* {integer}
 
 Returns the amount of memory allocated for `buf` in bytes. Note that this
 does not necessarily reflect the amount of "usable" data within `buf`.
@@ -1425,9 +1425,9 @@ console.log(buf.length);
 added: v0.11.15
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 8`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 8`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Number}
+* Returns: {number}
 
 Reads a 64-bit double from `buf` at the specified `offset` with specified
 endian format (`readDoubleBE()` returns big endian, `readDoubleLE()` returns
@@ -1461,9 +1461,9 @@ console.log(buf.readDoubleLE(1, true));
 added: v0.11.15
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Number}
+* Returns: {number}
 
 Reads a 32-bit float from `buf` at the specified `offset` with specified
 endian format (`readFloatBE()` returns big endian, `readFloatLE()` returns
@@ -1496,9 +1496,9 @@ console.log(buf.readFloatLE(1, true));
 added: v0.5.0
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 1`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 1`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads a signed 8-bit integer from `buf` at the specified `offset`.
 
@@ -1528,9 +1528,9 @@ console.log(buf.readInt8(2));
 added: v0.5.5
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 2`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 2`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads a signed 16-bit integer from `buf` at the specified `offset` with
 the specified endian format (`readInt16BE()` returns big endian,
@@ -1562,9 +1562,9 @@ console.log(buf.readInt16LE(1));
 added: v0.5.5
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads a signed 32-bit integer from `buf` at the specified `offset` with
 the specified endian format (`readInt32BE()` returns big endian,
@@ -1596,10 +1596,10 @@ console.log(buf.readInt32LE(1));
 added: v0.11.15
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - byteLength`
-* `byteLength` {Integer} How many bytes to read. Must satisfy: `0 < byteLength <= 6`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - byteLength`
+* `byteLength` {integer} How many bytes to read. Must satisfy: `0 < byteLength <= 6`
 * `noAssert` {boolean} Skip `offset` and `byteLength` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads `byteLength` number of bytes from `buf` at the specified `offset`
 and interprets the result as a two's complement signed value. Supports up to 48
@@ -1628,9 +1628,9 @@ console.log(buf.readIntBE(1, 6).toString(16));
 added: v0.5.0
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 1`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 1`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads an unsigned 8-bit integer from `buf` at the specified `offset`.
 
@@ -1658,9 +1658,9 @@ console.log(buf.readUInt8(2));
 added: v0.5.5
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 2`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 2`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads an unsigned 16-bit integer from `buf` at the specified `offset` with
 specified endian format (`readUInt16BE()` returns big endian, `readUInt16LE()`
@@ -1696,9 +1696,9 @@ console.log(buf.readUInt16LE(2).toString(16));
 added: v0.5.5
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `offset` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads an unsigned 32-bit integer from `buf` at the specified `offset` with
 specified endian format (`readUInt32BE()` returns big endian,
@@ -1728,10 +1728,10 @@ console.log(buf.readUInt32LE(1).toString(16));
 added: v0.11.15
 -->
 
-* `offset` {Integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - byteLength`
-* `byteLength` {Integer} How many bytes to read. Must satisfy: `0 < byteLength <= 6`
+* `offset` {integer} Where to start reading. Must satisfy: `0 <= offset <= buf.length - byteLength`
+* `byteLength` {integer} How many bytes to read. Must satisfy: `0 < byteLength <= 6`
 * `noAssert` {boolean} Skip `offset` and `byteLength` validation? **Default:** `false`
-* Returns: {Integer}
+* Returns: {integer}
 
 Reads `byteLength` number of bytes from `buf` at the specified `offset`
 and interprets the result as an unsigned integer. Supports up to 48
@@ -1760,8 +1760,8 @@ console.log(buf.readUIntBE(1, 6).toString(16));
 added: v0.3.0
 -->
 
-* `start` {Integer} Where the new `Buffer` will start. **Default:** `0`
-* `end` {Integer} Where the new `Buffer` will end (not inclusive).
+* `start` {integer} Where the new `Buffer` will start. **Default:** `0`
+* `end` {integer} Where the new `Buffer` will end (not inclusive).
   **Default:** [`buf.length`]
 * Returns: {Buffer}
 
@@ -1913,10 +1913,10 @@ added: v0.1.90
 -->
 
 * `encoding` {string} The character encoding to decode to. **Default:** `'utf8'`
-* `start` {Integer} The byte offset to start decoding at. **Default:** `0`
-* `end` {Integer} The byte offset to stop decoding at (not inclusive).
+* `start` {integer} The byte offset to start decoding at. **Default:** `0`
+* `end` {integer} The byte offset to stop decoding at (not inclusive).
   **Default:** [`buf.length`]
-* Returns: {String}
+* Returns: {string}
 
 Decodes `buf` to a string according to the specified character encoding in
 `encoding`. `start` and `end` may be passed to decode only a subset of `buf`.
@@ -2023,10 +2023,10 @@ added: v0.1.90
 -->
 
 * `string` {string} String to be written to `buf`
-* `offset` {Integer} Where to start writing `string`. **Default:** `0`
-* `length` {Integer} How many bytes to write. **Default:** `buf.length - offset`
+* `offset` {integer} Where to start writing `string`. **Default:** `0`
+* `length` {integer} How many bytes to write. **Default:** `buf.length - offset`
 * `encoding` {string} The character encoding of `string`. **Default:** `'utf8'`
-* Returns: {Integer} Number of bytes written
+* Returns: {integer} Number of bytes written
 
 Writes `string` to `buf` at `offset` according to the character encoding in `encoding`.
 The `length` parameter is the number of bytes to write. If `buf` did not contain
@@ -2051,9 +2051,9 @@ added: v0.11.15
 -->
 
 * `value` {number} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 8`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 8`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeDoubleBE()` writes big endian, `writeDoubleLE()` writes little
@@ -2086,9 +2086,9 @@ added: v0.11.15
 -->
 
 * `value` {number} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeFloatBE()` writes big endian, `writeFloatLE()` writes little
@@ -2119,10 +2119,10 @@ console.log(buf);
 added: v0.5.0
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 1`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 1`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset`. `value` *should* be a valid
 signed 8-bit integer. Behavior is undefined when `value` is anything other than
@@ -2151,10 +2151,10 @@ console.log(buf);
 added: v0.5.5
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 2`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 2`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeInt16BE()` writes big endian, `writeInt16LE()` writes little
@@ -2184,10 +2184,10 @@ console.log(buf);
 added: v0.5.5
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeInt32BE()` writes big endian, `writeInt32LE()` writes little
@@ -2217,12 +2217,12 @@ console.log(buf);
 added: v0.11.15
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - byteLength`
-* `byteLength` {Integer} How many bytes to write. Must satisfy: `0 < byteLength <= 6`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - byteLength`
+* `byteLength` {integer} How many bytes to write. Must satisfy: `0 < byteLength <= 6`
 * `noAssert` {boolean} Skip `value`, `offset`, and `byteLength` validation?
   **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `byteLength` bytes of `value` to `buf` at the specified `offset`.
 Supports up to 48 bits of accuracy. Behavior is undefined when `value` is
@@ -2252,10 +2252,10 @@ console.log(buf);
 added: v0.5.0
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 1`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 1`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset`. `value` *should* be a
 valid unsigned 8-bit integer. Behavior is undefined when `value` is anything
@@ -2284,10 +2284,10 @@ console.log(buf);
 added: v0.5.5
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 2`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 2`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeUInt16BE()` writes big endian, `writeUInt16LE()` writes little
@@ -2321,10 +2321,10 @@ console.log(buf);
 added: v0.5.5
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - 4`
 * `noAssert` {boolean} Skip `value` and `offset` validation? **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `value` to `buf` at the specified `offset` with specified endian
 format (`writeUInt32BE()` writes big endian, `writeUInt32LE()` writes little
@@ -2356,12 +2356,12 @@ console.log(buf);
 added: v0.5.5
 -->
 
-* `value` {Integer} Number to be written to `buf`
-* `offset` {Integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - byteLength`
-* `byteLength` {Integer} How many bytes to write. Must satisfy: `0 < byteLength <= 6`
+* `value` {integer} Number to be written to `buf`
+* `offset` {integer} Where to start writing. Must satisfy: `0 <= offset <= buf.length - byteLength`
+* `byteLength` {integer} How many bytes to write. Must satisfy: `0 < byteLength <= 6`
 * `noAssert` {boolean} Skip `value`, `offset`, and `byteLength` validation?
   **Default:** `false`
-* Returns: {Integer} `offset` plus the number of bytes written
+* Returns: {integer} `offset` plus the number of bytes written
 
 Writes `byteLength` bytes of `value` to `buf` at the specified `offset`.
 Supports up to 48 bits of accuracy. Behavior is undefined when `value` is
@@ -2391,7 +2391,7 @@ console.log(buf);
 added: v0.5.4
 -->
 
-* {Integer} **Default:** `50`
+* {integer} **Default:** `50`
 
 Returns the maximum number of bytes that will be returned when
 `buf.inspect()` is called. This can be overridden by user modules. See
@@ -2405,7 +2405,7 @@ Note that this is a property on the `buffer` module as returned by
 added: v3.0.0
 -->
 
-* {Integer} The largest size allowed for a single `Buffer` instance
+* {integer} The largest size allowed for a single `Buffer` instance
 
 On 32-bit architectures, this value is `(2^30)-1` (~1GB).
 On 64-bit architectures, this value is `(2^31)-1` (~2GB).
@@ -2457,7 +2457,7 @@ deprecated: v6.0.0
 
 > Stability: 0 - Deprecated: Use [`Buffer.allocUnsafeSlow()`] instead.
 
-* `size` {Integer} The desired length of the new `SlowBuffer`
+* `size` {integer} The desired length of the new `SlowBuffer`
 
 Allocates a new `SlowBuffer` of `size` bytes. The `size` must be less than
 or equal to the value of [`buffer.kMaxLength`]. Otherwise, a [`RangeError`] is
diff --git a/doc/api/child_process.md b/doc/api/child_process.md
index d91a1a5e5e60df..21fb32c1ae0596 100644
--- a/doc/api/child_process.md
+++ b/doc/api/child_process.md
@@ -135,9 +135,9 @@ added: v0.1.90
      understand the `-c` switch on UNIX or `/s /c` on Windows. On Windows,
      command line parsing should be compatible with `cmd.exe`.)
   * `timeout` {number} (Default: `0`)
-  * [`maxBuffer`][] {Number} largest amount of data (in bytes) allowed on
+  * [`maxBuffer`][] {number} largest amount of data (in bytes) allowed on
     stdout or stderr - if exceeded child process is killed (Default: `200*1024`)
-  * `killSignal` {string|Integer} (Default: `'SIGTERM'`)
+  * `killSignal` {string|integer} (Default: `'SIGTERM'`)
   * `uid` {number} Sets the user identity of the process. (See setuid(2).)
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
 * `callback` {Function} called with the output when process terminates
@@ -212,9 +212,9 @@ added: v0.1.91
   * `env` {Object} Environment key-value pairs
   * `encoding` {string} (Default: `'utf8'`)
   * `timeout` {number} (Default: `0`)
-  * [`maxBuffer`][] {Number} largest amount of data (in bytes) allowed on
+  * [`maxBuffer`][] {number} largest amount of data (in bytes) allowed on
     stdout or stderr - if exceeded child process is killed (Default: `200*1024`)
-  * `killSignal` {string|Integer} (Default: `'SIGTERM'`)
+  * `killSignal` {string|integer} (Default: `'SIGTERM'`)
   * `uid` {number} Sets the user identity of the process. (See setuid(2).)
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
 * `callback` {Function} called with the output when process terminates
@@ -583,7 +583,7 @@ added: v0.11.12
   * `input` {string|Buffer} The value which will be passed as stdin to the
     spawned process
     - supplying this value will override `stdio[0]`
-  * `stdio` {string | Array} Child's stdio configuration. (Default: `'pipe'`)
+  * `stdio` {string|Array} Child's stdio configuration. (Default: `'pipe'`)
     - `stderr` by default will be output to the parent process' stderr unless
       `stdio` is specified
   * `env` {Object} Environment key-value pairs
@@ -591,9 +591,9 @@ added: v0.11.12
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
   * `timeout` {number} In milliseconds the maximum amount of time the process
     is allowed to run. (Default: `undefined`)
-  * `killSignal` {string|Integer} The signal value to be used when the spawned
+  * `killSignal` {string|integer} The signal value to be used when the spawned
     process will be killed. (Default: `'SIGTERM'`)
-  * [`maxBuffer`][] {Number} largest amount of data (in bytes) allowed on
+  * [`maxBuffer`][] {number} largest amount of data (in bytes) allowed on
     stdout or stderr - if exceeded child process is killed
   * `encoding` {string} The encoding used for all stdio inputs and outputs. (Default: `'buffer'`)
 * Returns: {Buffer|string} The stdout from the command
@@ -621,7 +621,7 @@ added: v0.11.12
   * `input` {string|Buffer} The value which will be passed as stdin to the
     spawned process
     - supplying this value will override `stdio[0]`
-  * `stdio` {string | Array} Child's stdio configuration. (Default: `'pipe'`)
+  * `stdio` {string|Array} Child's stdio configuration. (Default: `'pipe'`)
     - `stderr` by default will be output to the parent process' stderr unless
       `stdio` is specified
   * `env` {Object} Environment key-value pairs
@@ -633,9 +633,9 @@ added: v0.11.12
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
   * `timeout` {number} In milliseconds the maximum amount of time the process
     is allowed to run. (Default: `undefined`)
-  * `killSignal` {string|Integer} The signal value to be used when the spawned
+  * `killSignal` {string|integer} The signal value to be used when the spawned
     process will be killed. (Default: `'SIGTERM'`)
-  * [`maxBuffer`][] {Number} largest amount of data (in bytes) allowed on
+  * [`maxBuffer`][] {number} largest amount of data (in bytes) allowed on
     stdout or stderr - if exceeded child process is killed
   * `encoding` {string} The encoding used for all stdio inputs and outputs.
     (Default: `'buffer'`)
@@ -669,15 +669,15 @@ added: v0.11.12
   * `input` {string|Buffer} The value which will be passed as stdin to the
     spawned process
     - supplying this value will override `stdio[0]`
-  * `stdio` {string | Array} Child's stdio configuration.
+  * `stdio` {string|Array} Child's stdio configuration.
   * `env` {Object} Environment key-value pairs
   * `uid` {number} Sets the user identity of the process. (See setuid(2).)
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
   * `timeout` {number} In milliseconds the maximum amount of time the process
     is allowed to run. (Default: `undefined`)
-  * `killSignal` {string|Integer} The signal value to be used when the spawned
+  * `killSignal` {string|integer} The signal value to be used when the spawned
     process will be killed. (Default: `'SIGTERM'`)
-  * [`maxBuffer`][] {Number} largest amount of data (in bytes) allowed on
+  * [`maxBuffer`][] {number} largest amount of data (in bytes) allowed on
     stdout or stderr - if exceeded child process is killed
   * `encoding` {string} The encoding used for all stdio inputs and outputs.
     (Default: `'buffer'`)
@@ -797,7 +797,7 @@ to send messages.
 added: v0.7.2
 -->
 
-* {Boolean} Set to `false` after `child.disconnect()` is called
+* {boolean} Set to `false` after `child.disconnect()` is called
 
 The `child.connected` property indicates whether it is still possible to send
 and receive messages from a child process. When `child.connected` is `false`, it
@@ -884,7 +884,7 @@ setTimeout(() => {
 added: v0.1.90
 -->
 
-* {Number} Integer
+* {number} Integer
 
 Returns the process identifier (PID) of the child process.
 
@@ -907,7 +907,7 @@ added: v0.5.9
 * `sendHandle` {Handle}
 * `options` {Object}
 * `callback` {Function}
-* Returns: {Boolean}
+* Returns: {boolean}
 
 When an IPC channel has been established between the parent and child (
 i.e. when using [`child_process.fork()`][]), the `child.send()` method can be
diff --git a/doc/api/cluster.md b/doc/api/cluster.md
index 850881d787bf14..bdf58e2b45f279 100644
--- a/doc/api/cluster.md
+++ b/doc/api/cluster.md
@@ -328,7 +328,7 @@ if (cluster.isMaster) {
 added: v6.0.0
 -->
 
-* {Boolean}
+* {boolean}
 
 Set by calling `.kill()` or `.disconnect()`. Until then, it is `undefined`.
 
@@ -352,7 +352,7 @@ worker.kill();
 added: v0.8.0
 -->
 
-* {Number}
+* {number}
 
 Each new worker is given its own unique id, this id is stored in the
 `id`.
@@ -672,7 +672,7 @@ This can only be called from the master process.
 added: v0.8.1
 -->
 
-* {Boolean}
+* {boolean}
 
 True if the process is a master. This is determined
 by the `process.env.NODE_UNIQUE_ID`. If `process.env.NODE_UNIQUE_ID` is
@@ -683,7 +683,7 @@ undefined, then `isMaster` is `true`.
 added: v0.6.0
 -->
 
-* {Boolean}
+* {boolean}
 
 True if the process is not a master (it is the negation of `cluster.isMaster`).
 
diff --git a/doc/api/console.md b/doc/api/console.md
index 7bc54641a21714..4813988d77b978 100644
--- a/doc/api/console.md
+++ b/doc/api/console.md
@@ -155,6 +155,11 @@ console.log('this will also print');
 <!-- YAML
 added: v0.1.101
 -->
+* `obj` {any}
+* `options` {Object}
+  * `showHidden` {boolean}
+  * `depth` {number}
+  * `colors` {boolean}
 
 Uses [`util.inspect()`][] on `obj` and prints the resulting string to `stdout`.
 This function bypasses any custom `inspect()` function defined on `obj`. An
@@ -227,6 +232,7 @@ values are concatenated. See [`util.format()`][] for more information.
 <!-- YAML
 added: v0.1.104
 -->
+* `label` {string}
 
 Starts a timer that can be used to compute the duration of an operation. Timers
 are identified by a unique `label`. Use the same `label` when you call
@@ -237,6 +243,7 @@ milliseconds to `stdout`. Timer durations are accurate to the sub-millisecond.
 <!-- YAML
 added: v0.1.104
 -->
+* `label` {string}
 
 Stops a timer that was previously started by calling [`console.time()`][] and
 prints the result to `stdout`:
diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index 17d273d115cea4..7b4a483b11e719 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -901,8 +901,8 @@ The `private_key` argument can be an object or a string. If `private_key` is a
 string, it is treated as a raw key with no passphrase. If `private_key` is an
 object, it is interpreted as a hash containing two properties:
 
-* `key` : {String} - PEM encoded private key
-* `passphrase` : {String} - passphrase for the private key
+* `key`: {string} - PEM encoded private key
+* `passphrase`: {string} - passphrase for the private key
 
 The `output_format` can specify one of `'latin1'`, `'hex'` or `'base64'`. If
 `output_format` is provided a string is returned; otherwise a [`Buffer`][] is
@@ -1410,8 +1410,8 @@ treated as the key with no passphrase and will use `RSA_PKCS1_OAEP_PADDING`.
 If `private_key` is an object, it is interpreted as a hash object with the
 keys:
 
-* `key` : {String} - PEM encoded private key
-* `passphrase` : {String} - Optional passphrase for the private key
+* `key`: {string} - PEM encoded private key
+* `passphrase`: {string} - Optional passphrase for the private key
 * `padding` : An optional padding value, one of the following:
   * `crypto.constants.RSA_NO_PADDING`
   * `crypto.constants.RSA_PKCS1_PADDING`
@@ -1447,8 +1447,8 @@ treated as the key with no passphrase and will use `RSA_PKCS1_PADDING`.
 If `private_key` is an object, it is interpreted as a hash object with the
 keys:
 
-* `key` : {String} - PEM encoded private key
-* `passphrase` : {String} - Optional passphrase for the private key
+* `key`: {string} - PEM encoded private key
+* `passphrase`: {string} - Optional passphrase for the private key
 * `padding` : An optional padding value, one of the following:
   * `crypto.constants.RSA_NO_PADDING`
   * `crypto.constants.RSA_PKCS1_PADDING`
@@ -1467,8 +1467,8 @@ treated as the key with no passphrase and will use `RSA_PKCS1_PADDING`.
 If `public_key` is an object, it is interpreted as a hash object with the
 keys:
 
-* `key` : {String} - PEM encoded public key
-* `passphrase` : {String} - Optional passphrase for the private key
+* `key`: {string} - PEM encoded public key
+* `passphrase`: {string} - Optional passphrase for the private key
 * `padding` : An optional padding value, one of the following:
   * `crypto.constants.RSA_NO_PADDING`
   * `crypto.constants.RSA_PKCS1_PADDING`
@@ -1491,8 +1491,8 @@ treated as the key with no passphrase and will use `RSA_PKCS1_OAEP_PADDING`.
 If `public_key` is an object, it is interpreted as a hash object with the
 keys:
 
-* `key` : {String} - PEM encoded public key
-* `passphrase` : {String} - Optional passphrase for the private key
+* `key`: {string} - PEM encoded public key
+* `passphrase`: {string} - Optional passphrase for the private key
 * `padding` : An optional padding value, one of the following:
   * `crypto.constants.RSA_NO_PADDING`
   * `crypto.constants.RSA_PKCS1_PADDING`
diff --git a/doc/api/dns.md b/doc/api/dns.md
index 301daaa6dce95d..9c78ddd6545c75 100644
--- a/doc/api/dns.md
+++ b/doc/api/dns.md
@@ -76,13 +76,13 @@ Alternatively, `options` can be an object containing these properties:
 
 * `family` {number} - The record family. If present, must be the integer
   `4` or `6`. If not provided, both IP v4 and v6 addresses are accepted.
-* `hints`: {Number} - If present, it should be one or more of the supported
+* `hints`: {number} - If present, it should be one or more of the supported
   `getaddrinfo` flags. If `hints` is not provided, then no flags are passed to
   `getaddrinfo`. Multiple flags can be passed through `hints` by bitwise
   `OR`ing their values.
   See [supported `getaddrinfo` flags][] for more information on supported
   flags.
-* `all`: {Boolean} - When `true`, the callback returns all resolved addresses
+* `all`: {boolean} - When `true`, the callback returns all resolved addresses
   in an array, otherwise returns a single address. Defaults to `false`.
 
 All properties are optional.
diff --git a/doc/api/errors.md b/doc/api/errors.md
index 94c06541c64842..9fc884b5625951 100644
--- a/doc/api/errors.md
+++ b/doc/api/errors.md
@@ -244,7 +244,7 @@ new MyError().stack;
 
 ### Error.stackTraceLimit
 
-* {Number}
+* {number}
 
 The `Error.stackTraceLimit` property specifies the number of stack frames
 collected by a stack trace (whether generated by `new Error().stack` or
@@ -258,7 +258,7 @@ not capture any frames.
 
 ### error.message
 
-* {String}
+* {string}
 
 The `error.message` property is the string description of the error as set by calling `new Error(message)`.
 The `message` passed to the constructor will also appear in the first line of
@@ -274,7 +274,7 @@ console.error(err.message);
 
 ### error.stack
 
-* {String}
+* {string}
 
 The `error.stack` property is a string describing the point in the code at which
 the `Error` was instantiated.
@@ -450,14 +450,14 @@ added properties.
 
 #### error.code
 
-* {String}
+* {string}
 
 The `error.code` property is a string representing the error code, which is always
 `E` followed by a sequence of capital letters.
 
 #### error.errno
 
-* {String | Number}
+* {string|number}
 
 The `error.errno` property is a number or a string.
 The number is a **negative** value which corresponds to the error code defined in
@@ -467,27 +467,27 @@ In case of a string, it is the same as `error.code`.
 
 #### error.syscall
 
-* {String}
+* {string}
 
 The `error.syscall` property is a string describing the [syscall][] that failed.
 
 #### error.path
 
-* {String}
+* {string}
 
 When present (e.g. in `fs` or `child_process`), the `error.path` property is a string
 containing a relevant invalid pathname.
 
 #### error.address
 
-* {String}
+* {string}
 
 When present (e.g. in `net` or `dgram`), the `error.address` property is a string
 describing the address to which the connection failed.
 
 #### error.port
 
-* {Number}
+* {number}
 
 When present (e.g. in `net` or `dgram`), the `error.port` property is a number representing
 the connection's port that is not available.
diff --git a/doc/api/fs.md b/doc/api/fs.md
index 9ee03b2a2fec1d..dcaeef23abbb99 100644
--- a/doc/api/fs.md
+++ b/doc/api/fs.md
@@ -122,7 +122,7 @@ added: v0.5.8
 -->
 
 * `eventType` {string} The type of fs change
-* `filename` {string | Buffer} The filename that changed (if relevant/available)
+* `filename` {string|Buffer} The filename that changed (if relevant/available)
 
 Emitted when something changes in a watched directory or file.
 See more details in [`fs.watch()`][].
@@ -178,8 +178,9 @@ Emitted when the ReadStream's file is opened.
 added: v0.1.93
 -->
 
-Emitted when the `ReadStream`'s underlying file descriptor has been closed
-using the `fs.close()` method.
+* `fd` {integer} Integer file descriptor used by the ReadStream.
+
+Emitted when the ReadStream's file is opened.
 
 ### readStream.bytesRead
 <!-- YAML
@@ -291,8 +292,9 @@ Emitted when the WriteStream's file is opened.
 added: v0.1.93
 -->
 
-Emitted when the `WriteStream`'s underlying file descriptor has been closed
-using the `fs.close()` method.
+* `fd` {integer} Integer file descriptor used by the WriteStream.
+
+Emitted when the WriteStream's file is opened.
 
 ### writeStream.bytesWritten
 <!-- YAML
@@ -317,8 +319,8 @@ argument to `fs.createWriteStream()`. If `path` is passed as a string, then
 added: v0.11.15
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 * `callback` {Function}
 
 Tests a user's permissions for the file or directory specified by `path`.
@@ -438,8 +440,8 @@ process.
 added: v0.11.15
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 
 Synchronous version of [`fs.access()`][]. This throws if any accessibility
 checks fail, and does nothing otherwise.
@@ -449,11 +451,11 @@ checks fail, and does nothing otherwise.
 added: v0.6.7
 -->
 
-* `file` {string | Buffer | Number} filename or file descriptor
-* `data` {string | Buffer}
-* `options` {Object | String}
-  * `encoding` {string | Null} default = `'utf8'`
-  * `mode` {Integer} default = `0o666`
+* `file` {string|Buffer|number} filename or file descriptor
+* `data` {string|Buffer}
+* `options` {Object|string}
+  * `encoding` {string|null} default = `'utf8'`
+  * `mode` {integer} default = `0o666`
   * `flag` {string} default = `'a'`
 * `callback` {Function}
 
@@ -485,11 +487,11 @@ automatically._
 added: v0.6.7
 -->
 
-* `file` {string | Buffer | Number} filename or file descriptor
-* `data` {string | Buffer}
-* `options` {Object | String}
-  * `encoding` {string | Null} default = `'utf8'`
-  * `mode` {Integer} default = `0o666`
+* `file` {string|Buffer|number} filename or file descriptor
+* `data` {string|Buffer}
+* `options` {Object|string}
+  * `encoding` {string|null} default = `'utf8'`
+  * `mode` {integer} default = `0o666`
   * `flag` {string} default = `'a'`
 
 The synchronous version of [`fs.appendFile()`][]. Returns `undefined`.
@@ -499,8 +501,8 @@ The synchronous version of [`fs.appendFile()`][]. Returns `undefined`.
 added: v0.1.30
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 * `callback` {Function}
 
 Asynchronous chmod(2). No arguments other than a possible exception are given
@@ -511,8 +513,8 @@ to the completion callback.
 added: v0.6.7
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 
 Synchronous chmod(2). Returns `undefined`.
 
@@ -521,9 +523,9 @@ Synchronous chmod(2). Returns `undefined`.
 added: v0.1.97
 -->
 
-* `path` {string | Buffer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `path` {string|Buffer}
+* `uid` {integer}
+* `gid` {integer}
 * `callback` {Function}
 
 Asynchronous chown(2). No arguments other than a possible exception are given
@@ -534,9 +536,9 @@ to the completion callback.
 added: v0.1.97
 -->
 
-* `path` {string | Buffer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `path` {string|Buffer}
+* `uid` {integer}
+* `gid` {integer}
 
 Synchronous chown(2). Returns `undefined`.
 
@@ -545,7 +547,7 @@ Synchronous chown(2). Returns `undefined`.
 added: v0.0.2
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `callback` {Function}
 
 Asynchronous close(2).  No arguments other than a possible exception are given
@@ -556,7 +558,7 @@ to the completion callback.
 added: v0.1.21
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 
 Synchronous close(2). Returns `undefined`.
 
@@ -571,15 +573,15 @@ operations. The specific constants currently defined are described in
 added: v0.1.31
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `flags` {string}
   * `encoding` {string}
-  * `fd` {Integer}
-  * `mode` {Integer}
+  * `fd` {integer}
+  * `mode` {integer}
   * `autoClose` {boolean}
-  * `start` {Integer}
-  * `end` {Integer}
+  * `start` {integer}
+  * `end` {integer}
 
 Returns a new [`ReadStream`][] object. (See [Readable Stream][]).
 
@@ -632,14 +634,14 @@ If `options` is a string, then it specifies the encoding.
 added: v0.1.31
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `flags` {string}
   * `defaultEncoding` {string}
-  * `fd` {Integer}
-  * `mode` {Integer}
+  * `fd` {integer}
+  * `mode` {integer}
   * `autoClose` {boolean}
-  * `start` {Integer}
+  * `start` {integer}
 
 Returns a new [`WriteStream`][] object. (See [Writable Stream][]).
 
@@ -682,7 +684,7 @@ deprecated: v1.0.0
 
 > Stability: 0 - Deprecated: Use [`fs.stat()`][] or [`fs.access()`][] instead.
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 * `callback` {Function}
 
 Test whether or not the given path exists by checking with the file system.
@@ -784,7 +786,7 @@ process.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 
 Synchronous version of [`fs.exists()`][].
 Returns `true` if the file exists, `false` otherwise.
@@ -799,8 +801,8 @@ a callback.)
 added: v0.4.7
 -->
 
-* `fd` {Integer}
-* `mode` {Integer}
+* `fd` {integer}
+* `mode` {integer}
 * `callback` {Function}
 
 Asynchronous fchmod(2). No arguments other than a possible exception
@@ -811,8 +813,8 @@ are given to the completion callback.
 added: v0.4.7
 -->
 
-* `fd` {Integer}
-* `mode` {Integer}
+* `fd` {integer}
+* `mode` {integer}
 
 Synchronous fchmod(2). Returns `undefined`.
 
@@ -821,9 +823,9 @@ Synchronous fchmod(2). Returns `undefined`.
 added: v0.4.7
 -->
 
-* `fd` {Integer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `fd` {integer}
+* `uid` {integer}
+* `gid` {integer}
 * `callback` {Function}
 
 Asynchronous fchown(2). No arguments other than a possible exception are given
@@ -834,9 +836,9 @@ to the completion callback.
 added: v0.4.7
 -->
 
-* `fd` {Integer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `fd` {integer}
+* `uid` {integer}
+* `gid` {integer}
 
 Synchronous fchown(2). Returns `undefined`.
 
@@ -845,7 +847,7 @@ Synchronous fchown(2). Returns `undefined`.
 added: v0.1.96
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `callback` {Function}
 
 Asynchronous fdatasync(2). No arguments other than a possible exception are
@@ -856,7 +858,7 @@ given to the completion callback.
 added: v0.1.96
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 
 Synchronous fdatasync(2). Returns `undefined`.
 
@@ -865,7 +867,7 @@ Synchronous fdatasync(2). Returns `undefined`.
 added: v0.1.95
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `callback` {Function}
 
 Asynchronous fstat(2). The callback gets two arguments `(err, stats)` where
@@ -877,7 +879,7 @@ except that the file to be stat-ed is specified by the file descriptor `fd`.
 added: v0.1.95
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 
 Synchronous fstat(2). Returns an instance of [`fs.Stats`][].
 
@@ -886,7 +888,7 @@ Synchronous fstat(2). Returns an instance of [`fs.Stats`][].
 added: v0.1.96
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `callback` {Function}
 
 Asynchronous fsync(2). No arguments other than a possible exception are given
@@ -897,7 +899,7 @@ to the completion callback.
 added: v0.1.96
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 
 Synchronous fsync(2). Returns `undefined`.
 
@@ -906,8 +908,8 @@ Synchronous fsync(2). Returns `undefined`.
 added: v0.8.6
 -->
 
-* `fd` {Integer}
-* `len` {Integer} default = `0`
+* `fd` {integer}
+* `len` {integer} default = `0`
 * `callback` {Function}
 
 Asynchronous ftruncate(2). No arguments other than a possible exception are
@@ -959,8 +961,8 @@ The last three bytes are null bytes ('\0'), to compensate the over-truncation.
 added: v0.8.6
 -->
 
-* `fd` {Integer}
-* `len` {Integer} default = `0`
+* `fd` {integer}
+* `len` {integer} default = `0`
 
 Synchronous ftruncate(2). Returns `undefined`.
 
@@ -969,9 +971,9 @@ Synchronous ftruncate(2). Returns `undefined`.
 added: v0.4.2
 -->
 
-* `fd` {Integer}
-* `atime` {Integer}
-* `mtime` {Integer}
+* `fd` {integer}
+* `atime` {integer}
+* `mtime` {integer}
 * `callback` {Function}
 
 Change the file timestamps of a file referenced by the supplied file
@@ -982,9 +984,9 @@ descriptor.
 added: v0.4.2
 -->
 
-* `fd` {Integer}
-* `atime` {Integer}
-* `mtime` {Integer}
+* `fd` {integer}
+* `atime` {integer}
+* `mtime` {integer}
 
 Synchronous version of [`fs.futimes()`][]. Returns `undefined`.
 
@@ -993,8 +995,8 @@ Synchronous version of [`fs.futimes()`][]. Returns `undefined`.
 deprecated: v0.4.7
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 * `callback` {Function}
 
 Asynchronous lchmod(2). No arguments other than a possible exception
@@ -1007,8 +1009,8 @@ Only available on macOS.
 deprecated: v0.4.7
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 
 Synchronous lchmod(2). Returns `undefined`.
 
@@ -1017,9 +1019,9 @@ Synchronous lchmod(2). Returns `undefined`.
 deprecated: v0.4.7
 -->
 
-* `path` {string | Buffer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `path` {string|Buffer}
+* `uid` {integer}
+* `gid` {integer}
 * `callback` {Function}
 
 Asynchronous lchown(2). No arguments other than a possible exception are given
@@ -1030,9 +1032,9 @@ to the completion callback.
 deprecated: v0.4.7
 -->
 
-* `path` {string | Buffer}
-* `uid` {Integer}
-* `gid` {Integer}
+* `path` {string|Buffer}
+* `uid` {integer}
+* `gid` {integer}
 
 Synchronous lchown(2). Returns `undefined`.
 
@@ -1041,8 +1043,8 @@ Synchronous lchown(2). Returns `undefined`.
 added: v0.1.31
 -->
 
-* `existingPath` {string | Buffer}
-* `newPath` {string | Buffer}
+* `existingPath` {string|Buffer}
+* `newPath` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous link(2). No arguments other than a possible exception are given to
@@ -1053,8 +1055,8 @@ the completion callback.
 added: v0.1.31
 -->
 
-* `existingPath` {string | Buffer}
-* `newPath` {string | Buffer}
+* `existingPath` {string|Buffer}
+* `newPath` {string|Buffer}
 
 Synchronous link(2). Returns `undefined`.
 
@@ -1063,7 +1065,7 @@ Synchronous link(2). Returns `undefined`.
 added: v0.1.30
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous lstat(2). The callback gets two arguments `(err, stats)` where
@@ -1076,7 +1078,7 @@ not the file that it refers to.
 added: v0.1.30
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 
 Synchronous lstat(2). Returns an instance of [`fs.Stats`][].
 
@@ -1085,8 +1087,8 @@ Synchronous lstat(2). Returns an instance of [`fs.Stats`][].
 added: v0.1.8
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 * `callback` {Function}
 
 Asynchronous mkdir(2). No arguments other than a possible exception are given
@@ -1097,8 +1099,8 @@ to the completion callback. `mode` defaults to `0o777`.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `mode` {integer}
 
 Synchronous mkdir(2). Returns `undefined`.
 
@@ -1108,7 +1110,7 @@ added: v5.10.0
 -->
 
 * `prefix` {string}
-* `options` {string | Object}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 * `callback` {Function}
 
@@ -1170,7 +1172,7 @@ added: v5.10.0
 -->
 
 * `prefix` {string}
-* `options` {string | Object}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 
 The synchronous version of [`fs.mkdtemp()`][]. Returns the created
@@ -1184,9 +1186,9 @@ object with an `encoding` property specifying the character encoding to use.
 added: v0.0.2
 -->
 
-* `path` {string | Buffer}
-* `flags` {string | Number}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `flags` {string|number}
+* `mode` {integer}
 * `callback` {Function}
 
 Asynchronous file open. See open(2). `flags` can be:
@@ -1268,9 +1270,9 @@ fs.open('<directory>', 'a+', (err, fd) => {
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
-* `flags` {string | Number}
-* `mode` {Integer}
+* `path` {string|Buffer}
+* `flags` {string|number}
+* `mode` {integer}
 
 Synchronous version of [`fs.open()`][]. Returns an integer representing the file
 descriptor.
@@ -1280,11 +1282,11 @@ descriptor.
 added: v0.0.2
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `buffer` {string | Buffer}
-* `offset` {Integer}
-* `length` {Integer}
-* `position` {Integer}
+* `offset` {integer}
+* `length` {integer}
+* `position` {integer}
 * `callback` {Function}
 
 Read data from the file specified by `fd`.
@@ -1305,8 +1307,8 @@ The callback is given the three arguments, `(err, bytesRead, buffer)`.
 added: v0.1.8
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 * `callback` {Function}
 
@@ -1324,8 +1326,8 @@ the filenames returned will be passed as `Buffer` objects.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 
 Synchronous readdir(3). Returns an array of filenames excluding `'.'` and
@@ -1341,9 +1343,9 @@ the filenames returned will be passed as `Buffer` objects.
 added: v0.1.29
 -->
 
-* `file` {string | Buffer | Integer} filename or file descriptor
-* `options` {Object | String}
-  * `encoding` {string | Null} default = `null`
+* `file` {string|Buffer|integer} filename or file descriptor
+* `options` {Object|string}
+  * `encoding` {string|null} default = `null`
   * `flag` {string} default = `'r'`
 * `callback` {Function}
 
@@ -1377,9 +1379,9 @@ automatically._
 added: v0.1.8
 -->
 
-* `file` {string | Buffer | Integer} filename or file descriptor
-* `options` {Object | String}
-  * `encoding` {string | Null} default = `null`
+* `file` {string|Buffer|integer} filename or file descriptor
+* `options` {Object|string}
+  * `encoding` {string|null} default = `null`
   * `flag` {string} default = `'r'`
 
 Synchronous version of [`fs.readFile`][]. Returns the contents of the `file`.
@@ -1392,8 +1394,8 @@ string. Otherwise it returns a buffer.
 added: v0.1.31
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 * `callback` {Function}
 
@@ -1410,8 +1412,8 @@ the link path returned will be passed as a `Buffer` object.
 added: v0.1.31
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 
 Synchronous readlink(2). Returns the symbolic link's string value.
@@ -1426,11 +1428,11 @@ the link path returned will be passed as a `Buffer` object.
 added: v0.1.21
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `buffer` {string | Buffer}
-* `offset` {Integer}
-* `length` {Integer}
-* `position` {Integer}
+* `offset` {integer}
+* `length` {integer}
+* `position` {integer}
 
 Synchronous version of [`fs.read()`][]. Returns the number of `bytesRead`.
 
@@ -1439,8 +1441,8 @@ Synchronous version of [`fs.read()`][]. Returns the number of `bytesRead`.
 added: v0.1.31
 -->
 
-* `path` {string | Buffer}
-* `options` {string | Object}
+* `path` {string|Buffer}
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 * `callback` {Function}
 
@@ -1459,8 +1461,8 @@ the path returned will be passed as a `Buffer` object.
 added: v0.1.31
 -->
 
-* `path` {string | Buffer};
-* `options` {string | Object}
+* `path` {string|Buffer};
+* `options` {string|Object}
   * `encoding` {string} default = `'utf8'`
 
 Synchronous realpath(3). Returns the resolved path.
@@ -1477,8 +1479,8 @@ will be passed as a `Buffer` object.
 added: v0.0.2
 -->
 
-* `oldPath` {string | Buffer}
-* `newPath` {string | Buffer}
+* `oldPath` {string|Buffer}
+* `newPath` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous rename(2). No arguments other than a possible exception are given
@@ -1489,8 +1491,8 @@ to the completion callback.
 added: v0.1.21
 -->
 
-* `oldPath` {string | Buffer}
-* `newPath` {string | Buffer}
+* `oldPath` {string|Buffer}
+* `newPath` {string|Buffer}
 
 Synchronous rename(2). Returns `undefined`.
 
@@ -1499,7 +1501,7 @@ Synchronous rename(2). Returns `undefined`.
 added: v0.0.2
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous rmdir(2). No arguments other than a possible exception are given
@@ -1510,7 +1512,7 @@ to the completion callback.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 
 Synchronous rmdir(2). Returns `undefined`.
 
@@ -1519,7 +1521,7 @@ Synchronous rmdir(2). Returns `undefined`.
 added: v0.0.2
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous stat(2). The callback gets two arguments `(err, stats)` where
@@ -1540,7 +1542,7 @@ is recommended.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 
 Synchronous stat(2). Returns an instance of [`fs.Stats`][].
 
@@ -1549,8 +1551,8 @@ Synchronous stat(2). Returns an instance of [`fs.Stats`][].
 added: v0.1.31
 -->
 
-* `target` {string | Buffer}
-* `path` {string | Buffer}
+* `target` {string|Buffer}
+* `path` {string|Buffer}
 * `type` {string}
 * `callback` {Function}
 
@@ -1574,8 +1576,8 @@ It creates a symbolic link named "new-port" that points to "foo".
 added: v0.1.31
 -->
 
-* `target` {string | Buffer}
-* `path` {string | Buffer}
+* `target` {string|Buffer}
+* `path` {string|Buffer}
 * `type` {string}
 
 Synchronous symlink(2). Returns `undefined`.
@@ -1585,8 +1587,8 @@ Synchronous symlink(2). Returns `undefined`.
 added: v0.8.6
 -->
 
-* `path` {string | Buffer}
-* `len` {Integer} default = `0`
+* `path` {string|Buffer}
+* `len` {integer} default = `0`
 * `callback` {Function}
 
 Asynchronous truncate(2). No arguments other than a possible exception are
@@ -1598,8 +1600,8 @@ first argument. In this case, `fs.ftruncate()` is called.
 added: v0.8.6
 -->
 
-* `path` {string | Buffer}
-* `len` {Integer} default = `0`
+* `path` {string|Buffer}
+* `len` {integer} default = `0`
 
 Synchronous truncate(2). Returns `undefined`. A file descriptor can also be
 passed as the first argument. In this case, `fs.ftruncateSync()` is called.
@@ -1609,7 +1611,7 @@ passed as the first argument. In this case, `fs.ftruncateSync()` is called.
 added: v0.0.2
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 * `callback` {Function}
 
 Asynchronous unlink(2). No arguments other than a possible exception are given
@@ -1620,7 +1622,7 @@ to the completion callback.
 added: v0.1.21
 -->
 
-* `path` {string | Buffer}
+* `path` {string|Buffer}
 
 Synchronous unlink(2). Returns `undefined`.
 
@@ -1629,7 +1631,7 @@ Synchronous unlink(2). Returns `undefined`.
 added: v0.1.31
 -->
 
-* `filename` {string | Buffer}
+* `filename` {string|Buffer}
 * `listener` {Function}
 
 Stop watching for changes on `filename`. If `listener` is specified, only that
@@ -1648,9 +1650,9 @@ when possible._
 added: v0.4.2
 -->
 
-* `path` {string | Buffer}
-* `atime` {Integer}
-* `mtime` {Integer}
+* `path` {string|Buffer}
+* `atime` {integer}
+* `mtime` {integer}
 * `callback` {Function}
 
 Change file timestamps of the file referenced by the supplied path.
@@ -1670,9 +1672,9 @@ follow these rules:
 added: v0.4.2
 -->
 
-* `path` {string | Buffer}
-* `atime` {Integer}
-* `mtime` {Integer}
+* `path` {string|Buffer}
+* `atime` {integer}
+* `mtime` {integer}
 
 Synchronous version of [`fs.utimes()`][]. Returns `undefined`.
 
@@ -1681,8 +1683,8 @@ Synchronous version of [`fs.utimes()`][]. Returns `undefined`.
 added: v0.5.10
 -->
 
-* `filename` {string | Buffer}
-* `options` {string | Object}
+* `filename` {string|Buffer}
+* `options` {string|Object}
   * `persistent` {boolean} Indicates whether the process should continue to run
     as long as files are being watched. default = `true`
   * `recursive` {boolean} Indicates whether all subdirectories should be
@@ -1784,10 +1786,10 @@ fs.watch('somedir', (eventType, filename) => {
 added: v0.1.31
 -->
 
-* `filename` {string | Buffer}
+* `filename` {string|Buffer}
 * `options` {Object}
   * `persistent` {boolean}
-  * `interval` {Integer}
+  * `interval` {integer}
 * `listener` {Function}
 
 Watch for changes on `filename`. The callback `listener` will be called each
@@ -1830,11 +1832,11 @@ _Note: [`fs.watch()`][] is more efficient than `fs.watchFile` and
 added: v0.0.2
 -->
 
-* `fd` {Integer}
-* `buffer` {String | Buffer}
-* `offset` {Integer}
-* `length` {Integer}
-* `position` {Integer}
+* `fd` {integer}
+* `buffer` {string | Buffer}
+* `offset` {integer}
+* `length` {integer}
+* `position` {integer}
 * `callback` {Function}
 
 Write `buffer` to the file specified by `fd`.
@@ -1862,9 +1864,9 @@ the end of the file.
 added: v0.11.5
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `data` {string | Buffer}
-* `position` {Integer}
+* `position` {integer}
 * `encoding` {string}
 * `callback` {Function}
 
@@ -1898,11 +1900,11 @@ the end of the file.
 added: v0.1.29
 -->
 
-* `file` {string | Buffer | Integer} filename or file descriptor
+* `file` {string | Buffer | integer} filename or file descriptor
 * `data` {string | Buffer}
-* `options` {Object | String}
+* `options` {Object | string}
   * `encoding` {string | Null} default = `'utf8'`
-  * `mode` {Integer} default = `0o666`
+  * `mode` {integer} default = `0o666`
   * `flag` {string} default = `'w'`
 * `callback` {Function}
 
@@ -1941,11 +1943,11 @@ automatically._
 added: v0.1.29
 -->
 
-* `file` {string | Buffer | Integer} filename or file descriptor
+* `file` {string | Buffer | integer} filename or file descriptor
 * `data` {string | Buffer}
-* `options` {Object | String}
+* `options` {Object | string}
   * `encoding` {string | Null} default = `'utf8'`
-  * `mode` {Integer} default = `0o666`
+  * `mode` {integer} default = `0o666`
   * `flag` {string} default = `'w'`
 
 The synchronous version of [`fs.writeFile()`][]. Returns `undefined`.
@@ -1955,20 +1957,20 @@ The synchronous version of [`fs.writeFile()`][]. Returns `undefined`.
 added: v0.1.21
 -->
 
-* `fd` {Integer}
-* `buffer` {String | Buffer}
-* `offset` {Integer}
-* `length` {Integer}
-* `position` {Integer}
+* `fd` {integer}
+* `buffer` {string | Buffer}
+* `offset` {integer}
+* `length` {integer}
+* `position` {integer}
 
 ## fs.writeSync(fd, data[, position[, encoding]])
 <!-- YAML
 added: v0.11.5
 -->
 
-* `fd` {Integer}
+* `fd` {integer}
 * `data` {string | Buffer}
-* `position` {Integer}
+* `position` {integer}
 * `encoding` {string}
 
 Synchronous versions of [`fs.write()`][]. Returns the number of bytes written.
diff --git a/doc/api/globals.md b/doc/api/globals.md
index a60cd4cc226fb2..b0467cdacde3a5 100644
--- a/doc/api/globals.md
+++ b/doc/api/globals.md
@@ -27,7 +27,7 @@ added: v0.1.27
 
 <!-- type=var -->
 
-* {String}
+* {string}
 
 The directory name of the current module. This the same as the
 [`path.dirname()`][] of the [`__filename`][].
@@ -50,7 +50,7 @@ added: v0.0.1
 
 <!-- type=var -->
 
-* {String}
+* {string}
 
 The file name of the current module. This is the resolved absolute path of the
 current module file.
diff --git a/doc/api/http.md b/doc/api/http.md
index 3d7174e909fbdb..02b7aa5cc9e7e7 100644
--- a/doc/api/http.md
+++ b/doc/api/http.md
@@ -463,7 +463,7 @@ aborted, in milliseconds since 1 January 1970 00:00:00 UTC.
 added: v0.1.90
 -->
 
-* `data` {string | Buffer}
+* `data` {string|Buffer}
 * `encoding` {string}
 * `callback` {Function}
 
@@ -531,7 +531,7 @@ Returns `request`.
 added: v0.1.29
 -->
 
-* `chunk` {string | Buffer}
+* `chunk` {string|Buffer}
 * `encoding` {string}
 * `callback` {Function}
 
@@ -895,7 +895,7 @@ will result in a [`TypeError`][] being thrown.
 added: v0.1.90
 -->
 
-* `data` {string | Buffer}
+* `data` {string|Buffer}
 * `encoding` {string}
 * `callback` {Function}
 
@@ -1080,7 +1080,7 @@ status message which was sent out.
 added: v0.1.29
 -->
 
-* `chunk` {string | Buffer}
+* `chunk` {string|Buffer}
 * `encoding` {string}
 * `callback` {Function}
 * Returns: {Boolean}
diff --git a/doc/api/modules.md b/doc/api/modules.md
index 4eca72dd210c55..9621c72ccee0e4 100644
--- a/doc/api/modules.md
+++ b/doc/api/modules.md
@@ -586,7 +586,7 @@ function require(/* ... */) {
 added: v0.1.16
 -->
 
-* {String}
+* {string}
 
 The fully resolved filename to the module.
 
@@ -595,7 +595,7 @@ The fully resolved filename to the module.
 added: v0.1.16
 -->
 
-* {String}
+* {string}
 
 The identifier for the module.  Typically this is the fully resolved
 filename.
@@ -605,7 +605,7 @@ filename.
 added: v0.1.16
 -->
 
-* {Boolean}
+* {boolean}
 
 Whether or not the module is done loading, or is in the process of
 loading.
diff --git a/doc/api/os.md b/doc/api/os.md
index 318ea8d76cda3a..d14cd1b770e3db 100644
--- a/doc/api/os.md
+++ b/doc/api/os.md
@@ -14,7 +14,7 @@ const os = require('os');
 added: v0.7.8
 -->
 
-* {String}
+* {string}
 
 A string constant defining the operating system-specific end-of-line marker:
 
@@ -26,7 +26,7 @@ A string constant defining the operating system-specific end-of-line marker:
 added: v0.5.0
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.arch()` method returns a string identifying the operating system CPU
 architecture *for which the Node.js binary was compiled*.
@@ -172,7 +172,7 @@ all processors are always 0.
 added: v0.9.4
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.endianness()` method returns a string identifying the endianness of the
 CPU *for which the Node.js binary was compiled*.
@@ -187,7 +187,7 @@ Possible values are:
 added: v0.3.3
 -->
 
-* Returns: {Integer}
+* Returns: {integer}
 
 The `os.freemem()` method returns the amount of free system memory in bytes as
 an integer.
@@ -197,7 +197,7 @@ an integer.
 added: v2.3.0
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.homedir()` method returns the home directory of the current user as a
 string.
@@ -207,7 +207,7 @@ string.
 added: v0.3.3
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.hostname()` method returns the hostname of the operating system as a
 string.
@@ -295,7 +295,7 @@ The properties available on the assigned network address object include:
 added: v0.5.0
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.platform()` method returns a string identifying the operating system
 platform as set during compile time of Node.js.
@@ -321,7 +321,7 @@ to be experimental at this time.
 added: v0.3.3
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.release()` method returns a string identifying the operating system
 release.
@@ -335,7 +335,7 @@ https://en.wikipedia.org/wiki/Uname#Examples for more information.
 added: v0.9.9
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.tmpdir()` method returns a string specifying the operating system's
 default directory for temporary files.
@@ -345,7 +345,7 @@ default directory for temporary files.
 added: v0.3.3
 -->
 
-* Returns: {Integer}
+* Returns: {integer}
 
 The `os.totalmem()` method returns the total amount of system memory in bytes
 as an integer.
@@ -355,7 +355,7 @@ as an integer.
 added: v0.3.3
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `os.type()` method returns a string identifying the operating system name
 as returned by uname(3). For example `'Linux'` on Linux, `'Darwin'` on macOS and
@@ -369,7 +369,7 @@ information about the output of running uname(3) on various operating systems.
 added: v0.3.3
 -->
 
-* Returns: {Integer}
+* Returns: {integer}
 
 The `os.uptime()` method returns the system uptime in number of seconds.
 
diff --git a/doc/api/path.md b/doc/api/path.md
index c8fdff46a76d5f..a44bacb4657c10 100644
--- a/doc/api/path.md
+++ b/doc/api/path.md
@@ -61,7 +61,7 @@ added: v0.1.25
 
 * `path` {string}
 * `ext` {string} An optional file extension
-* Returns: {String}
+* Returns: {string}
 
 The `path.basename()` methods returns the last portion of a `path`, similar to
 the Unix `basename` command. Trailing directory separators are ignored, see
@@ -85,7 +85,7 @@ and is not a string.
 added: v0.9.3
 -->
 
-* {String}
+* {string}
 
 Provides the platform-specific path delimiter:
 
@@ -118,7 +118,7 @@ added: v0.1.16
 -->
 
 * `path` {string}
-* Returns: {String}
+* Returns: {string}
 
 The `path.dirname()` method returns the directory name of a `path`, similar to
 the Unix `dirname` command. Trailing directory separators are ignored, see
@@ -139,7 +139,7 @@ added: v0.1.25
 -->
 
 * `path` {string}
-* Returns: {String}
+* Returns: {string}
 
 The `path.extname()` method returns the extension of the `path`, from the last
 occurrence of the `.` (period) character to end of string in the last portion of
@@ -179,7 +179,7 @@ added: v0.11.15
   * `base` {string}
   * `name` {string}
   * `ext` {string}
-* Returns: {String}
+* Returns: {string}
 
 The `path.format()` method returns a path string from an object. This is the
 opposite of [`path.parse()`][].
@@ -238,7 +238,7 @@ added: v0.11.2
 -->
 
 * `path` {string}
-* Returns: {Boolean}
+* Returns: {boolean}
 
 The `path.isAbsolute()` method determines if `path` is an absolute path.
 
@@ -273,7 +273,7 @@ added: v0.1.16
 -->
 
 * `...paths` {string} A sequence of path segments
-* Returns: {String}
+* Returns: {string}
 
 The `path.join()` method joins all given `path` segments together using the
 platform specific separator as a delimiter, then normalizes the resulting path.
@@ -300,7 +300,7 @@ added: v0.1.23
 -->
 
 * `path` {string}
-* Returns: {String}
+* Returns: {string}
 
 The `path.normalize()` method normalizes the given `path`, resolving `'..'` and
 `'.'` segments.
@@ -415,7 +415,7 @@ added: v0.5.0
 
 * `from` {string}
 * `to` {string}
-* Returns: {String}
+* Returns: {string}
 
 The `path.relative()` method returns the relative path from `from` to `to`.
 If `from` and `to` each resolve to the same path (after calling `path.resolve()`
@@ -446,7 +446,7 @@ added: v0.3.4
 -->
 
 * `...paths` {string} A sequence of paths or path segments
-* Returns: {String}
+* Returns: {string}
 
 The `path.resolve()` method resolves a sequence of paths or path segments into
 an absolute path.
@@ -488,7 +488,7 @@ A [`TypeError`][] is thrown if any of the arguments is not a string.
 added: v0.7.9
 -->
 
-* {String}
+* {string}
 
 Provides the platform-specific path segment separator:
 
diff --git a/doc/api/process.md b/doc/api/process.md
index 6a1a779ddddf9d..70156972cb90b1 100644
--- a/doc/api/process.md
+++ b/doc/api/process.md
@@ -447,7 +447,7 @@ generate a core file.
 added: v0.5.0
 -->
 
-* {String}
+* {string}
 
 The `process.arch` property returns a String identifying the processor
 architecture that the Node.js process is currently running on. For instance
@@ -501,7 +501,7 @@ Would generate the output:
 added: 6.4.0
 -->
 
-* {String}
+* {string}
 
 The `process.argv0` property stores a read-only copy of the original value of
 `argv[0]` passed when Node.js starts.
@@ -586,7 +586,7 @@ replace the value of `process.config`.
 added: v0.7.2
 -->
 
-* {Boolean}
+* {boolean}
 
 If the Node.js process is spawned with an IPC channel (see the [Child Process][]
 and [Cluster][] documentation), the `process.connected` property will return
@@ -604,8 +604,8 @@ added: v6.1.0
 * `previousValue` {Object} A previous return value from calling
   `process.cpuUsage()`
 * Returns: {Object}
-    * `user` {Integer}
-    * `system` {Integer}
+    * `user` {integer}
+    * `system` {integer}
 
 The `process.cpuUsage()` method returns the user and system CPU time usage of
 the current process, in an object with properties `user` and `system`, whose
@@ -633,7 +633,7 @@ console.log(process.cpuUsage(startUsage));
 added: v0.1.8
 -->
 
-* Returns: {String}
+* Returns: {string}
 
 The `process.cwd()` method returns the current working directory of the Node.js
 process.
@@ -861,7 +861,7 @@ And `process.argv`:
 added: v0.1.100
 -->
 
-* {String}
+* {string}
 
 The `process.execPath` property returns the absolute pathname of the executable
 that started the Node.js process.
@@ -878,7 +878,7 @@ For example:
 added: v0.1.13
 -->
 
-* `code` {Integer} The exit code. Defaults to `0`.
+* `code` {integer} The exit code. Defaults to `0`.
 
 The `process.exit()` method instructs Node.js to terminate the process
 synchronously with an exit status of `code`. If `code` is omitted, exit uses
@@ -943,7 +943,7 @@ is safer than calling `process.exit()`.
 added: v0.11.8
 -->
 
-* {Integer}
+* {integer}
 
 A number which will be the process exit code, when the process either
 exits gracefully, or is exited via [`process.exit()`][] without specifying
@@ -1028,7 +1028,7 @@ Android)
 added: v0.1.28
 -->
 
-* Returns: {Integer}
+* Returns: {integer}
 
 The `process.getuid()` method returns the numeric user identity of the process.
 (See getuid(2).)
@@ -1163,10 +1163,10 @@ added: v0.1.16
 -->
 
 * Returns: {Object}
-    * `rss` {Integer}
-    * `heapTotal` {Integer}
-    * `heapUsed` {Integer}
-    * `external` {Integer}
+    * `rss` {integer}
+    * `heapTotal` {integer}
+    * `heapUsed` {integer}
+    * `external` {integer}
 
 The `process.memoryUsage()` method returns an object describing the memory usage
 of the Node.js process measured in bytes.
@@ -1291,7 +1291,7 @@ happening, just like a `while(true);` loop.
 added: v0.1.15
 -->
 
-* {Integer}
+* {integer}
 
 The `process.pid` property returns the PID of the process.
 
@@ -1304,7 +1304,7 @@ console.log(`This process is pid ${process.pid}`);
 added: v0.1.16
 -->
 
-* {String}
+* {string}
 
 The `process.platform` property returns a string identifying the operating
 system platform on which the Node.js process is running. For instance
@@ -1335,7 +1335,7 @@ tarball.
   - `"Boron"` for the v6.x LTS line beginning with v6.9.0.
 * `sourceUrl` {string} an absolute URL pointing to a _`.tar.gz`_ file containing
   the source code of the current release.
-* `headersUrl`{String} an absolute URL pointing to a _`.tar.gz`_ file containing
+* `headersUrl`{string} an absolute URL pointing to a _`.tar.gz`_ file containing
   only the source header files for the current release. This file is
   significantly smaller than the full source file and can be used for compiling
   Node.js native add-ons.
@@ -1371,7 +1371,7 @@ added: v0.5.9
 * `sendHandle` {Handle object}
 * `options` {Object}
 * `callback` {Function}
-* Returns: {Boolean}
+* Returns: {boolean}
 
 If Node.js is spawned with an IPC channel, the `process.send()` method can be
 used to send messages to the parent process. Messages will be received as a
@@ -1629,7 +1629,7 @@ See the [TTY][] documentation for more information.
 added: v0.1.104
 -->
 
-* {String}
+* {string}
 
 The `process.title` property returns the current process title (i.e. returns
 the current value of `ps`). Assigning a new value to `process.title` modifies
@@ -1670,7 +1670,7 @@ console.log(
 added: v0.5.0
 -->
 
-* Returns: {Number}
+* Returns: {number}
 
 The `process.uptime()` method returns the number of seconds the current Node.js
 process has been running.
@@ -1680,7 +1680,7 @@ process has been running.
 added: v0.1.3
 -->
 
-* {String}
+* {string}
 
 The `process.version` property returns the Node.js version string.
 
diff --git a/doc/api/repl.md b/doc/api/repl.md
index 27b5b9aa392ab2..248d87991bb8ff 100644
--- a/doc/api/repl.md
+++ b/doc/api/repl.md
@@ -371,7 +371,7 @@ within the action function for commands registered using the
 added: v0.1.91
 -->
 
-* `options` {Object | String}
+* `options` {Object | string}
   * `prompt` {string} The input prompt to display. Defaults to `> `.
   * `input` {Readable} The Readable stream from which REPL input will be read.
     Defaults to `process.stdin`.
diff --git a/doc/api/stream.md b/doc/api/stream.md
index e74cb327ce0239..6464d453840d13 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -434,7 +434,7 @@ added: v0.9.4
 * `chunk` {string|Buffer} The data to write
 * `encoding` {string} The encoding, if `chunk` is a String
 * `callback` {Function} Callback for when this chunk of data is flushed
-* Returns: {Boolean} `false` if the stream wishes for the calling code to
+* Returns: {boolean} `false` if the stream wishes for the calling code to
   wait for the `'drain'` event to be emitted before continuing to write
   additional data; otherwise `true`.
 
@@ -732,7 +732,7 @@ preferred over the use of the `'readable'` event.
 added: v0.11.14
 -->
 
-* Returns: {Boolean}
+* Returns: {boolean}
 
 The `readable.isPaused()` method returns the current operating state of the
 Readable. This is used primarily by the mechanism that underlies the
@@ -837,7 +837,7 @@ added: v0.9.4
 -->
 
 * `size` {number} Optional argument to specify how much data to read.
-* Return {String|Buffer|null}
+* Return {string|Buffer|null}
 
 The `readable.read()` method pulls some data out of the internal buffer and
 returns it. If no data available to be read, `null` is returned. By default,
@@ -1486,7 +1486,7 @@ user programs.
 * `chunk` {Buffer|null|string} Chunk of data to push into the read queue
 * `encoding` {string} Encoding of String chunks.  Must be a valid
   Buffer encoding, such as `'utf8'` or `'ascii'`
-* Returns {Boolean} `true` if additional chunks of data may continued to be
+* Returns {boolean} `true` if additional chunks of data may continued to be
   pushed; `false` otherwise.
 
 When `chunk` is a `Buffer` or `string`, the `chunk` of data will be added to the
diff --git a/tools/doc/type-parser.js b/tools/doc/type-parser.js
index 96fdaf16e99461..3f1ea9597c4fbe 100644
--- a/tools/doc/type-parser.js
+++ b/tools/doc/type-parser.js
@@ -5,12 +5,13 @@ const jsDocUrl = 'https://developer.mozilla.org/en-US/docs/Web/JavaScript/' +
 const jsPrimitiveUrl = 'https://developer.mozilla.org/en-US/docs/Web/' +
                        'JavaScript/Data_structures';
 const jsPrimitives = {
-  'integer': 'Number',  // this is for extending
-  'number': 'Number',
-  'string': 'String',
   'boolean': 'Boolean',
+  'integer': 'Number', // not a primitive, used for clarification
   'null': 'Null',
-  'symbol': 'Symbol'
+  'number': 'Number',
+  'string': 'String',
+  'symbol': 'Symbol',
+  'undefined': 'Undefined'
 };
 const jsGlobalTypes = [
   'Error', 'Object', 'Function', 'Array', 'TypedArray', 'Uint8Array',