# 有声両唇軟口蓋接近音

| 有声両唇軟口蓋接近音 |
| --- |
| w |
| IPA 番号 | 170 |
| IPA 表記 | [w] |
| IPA 画像 |  |
| Unicode | U+0077 |
| 文字参照 | &#119; |
| JIS X 0213 | 1-3-87 |
| X-SAMPA | w |
| Kirshenbaum | w  |
| Duration: 2 seconds.0:02音声サンプル |

**有声両唇軟口蓋接近音**（ゆうせい りょうしん なんこうがい せっきんおん、英: voiced labial–velar approximant）とは、子音の分類の一つ。下唇と上唇、後舌と軟口蓋の2カ所で狭めをつくって二重調音される接近音である。唇は丸みを帯び、前に突き出ている。摩擦の起こらない程度の広さをもった隙間から調音され、常に声帯の震動を伴う有声音で実現される。国際音声字母で[w]と記述される。

この子音は多くの言語に見られる。日本語の/わ/の子音はこの音に近く、ローマ字表記でもわ行の子音字にはWを主に用いるが、話者にもよるものの（とくに早い発音では）唇は近づけるだけで丸めをともなわないため、両唇接近音[β̞]として表記されることが多い。

## 言語例

* 英語 - **w**ood [wʊd]
* フランス語 - **ou**i [wi]
* 広東語 - 電**話** [tiːn waː]

## 表記

各言語で次のような字母や二重音字によって表記される。

* 英語 - w
* フランス語 - ou（oui [wi] 「はい」等。ただし多用される音ではない）
* ポーランド語 - ł（もとは軟口蓋化した歯茎側面接近音で発音されていた。なお w は [v] である）
* ナワトル語 - hu（スペイン語の流儀を拡張した記法。hの挿入によって直前の母音との非連続が明示される）
* ベラルーシ語 - Ў （キリル文字。ラテン文字では通常 ŭ とする）
* ウクライナ語 - в 及びその交替としての у（キリル文字）
* 古英語 - ƿ （wynn と呼ばれる）

**子音**

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**肺臓気流**|  | 両唇 | 唇歯 | 歯 | 歯茎 | 後部歯茎 | そり舌 | 硬口蓋 | 軟口蓋 | 口蓋垂 | 咽頭 | 声門 |
| 破裂 | p | b | (p̪) | (b̪) | (t̪) | (d̪) | t | d |  |  | ʈ | ɖ | c | ɟ | k | ɡ | q | ɢ | ( ʡˤ) |  | ʔ |  |
| 鼻 | (m̥) | m | (ɱ̊) | ɱ | (n̪̊) | (n̪) | (n̥) | n |  |  |  | ɳ |  | ɲ |  | ŋ |  | ɴ |  |  |
| ふるえ | (ʙ̥) | ʙ |  |  |  |  | (r̥) | r |  |  |  |  |  |  |  |  | ʀ |  |  |
| はじき |  | (ⱱ̟) |  | ⱱ |  |  |  | ɾ |  |  |  | ɽ |  | (ɟ̆) |  |  | (ɢ̆) |  | (ʡ̆) |  |
| 摩擦 | ɸ | β | f | v | θ | ð | s | z | ʃ | ʒ | ʂ | ʐ | ç | ʝ | x | ɣ | χ | ʁ | ħ | ʕ | h | ɦ |
| 側面摩擦 |  |  |  |  | ɬ | ɮ |  |  |  |  |  |  |  |  |  |  |  |  |
| 接近 |  | (β̞) | (ʋ̥) | ʋ |  |  | (ɹ̥) | ɹ |  |  |  | ɻ |  | j |  | ɰ |  |  |  |  |  |
| 側面接近 |  |  |  |  | (l̥) | l |  |  |  | ɭ |  | ʎ |  | ʟ |  |  |  |  |

 |  |

**非肺臓気流 表
* 話
* 編
* 歴
| 吸着 | ʘ | ǀ | ǃ | 𝼊 | ǂ | ǁ | (ʞ) |
| 入破 | ɓ | ɗ̪ | ɗ | (ᶑ) | ʄ | ɠ | ʛ |
| 放出 | pʼ | (t̪ʼ) | tʼ | ʈʼ | cʼ | kʼ | (qʼ) | sʼ |

**その他**| 同時調音 | ʍ | w | ɥ | ɕ | ʑ | ɧ |
| (k͡p) | (ɡ͡b) | (ŋ͡m) |

|  |  |  |  |
| --- | --- | --- | --- |
| 喉頭蓋音 | ʜ | ʢ | ʡ |

|  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- |
| 舌唇音 | (t̼) | (d̼) | (n̼) | (θ̼) | (ð̼) |

|  |  |  |  |
| --- | --- | --- | --- |
| その他側面音 | ɺ | (ɭ̆) | (ɫ) |

 |
|

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 破擦音 | p͡ɸ | b͡β | p̪͡f | b̪͡v | t͡θ | d͡ð | t͡s | d͡z | t͡ʃ | d͡ʒ | ʈ͡ʂ | ɖ͡ʐ | t͡ɕ | d͡ʑ | c͡ç | ɟ͡ʝ | k͡x | ɡ͡ɣ | q͡χ | ɢ͡ʁ | t͡ɬ | d͡ɮ | ʔ͡h |  |

 |
| 記号が二つ並んでいるものは、左が無声音、右が有声音。網掛けは調音が不可能と考えられる部分。 丸括弧内はIPA子音表（2005年改訂版）に記載されていないもの。
 |

国際音声記号 - 子音 * 表
* 話
* 編
* 歴