# 歯

| 歯 | U+6B6F, &#27503; CJK UNIFIED IDEOGRAPH-6B6F |
| ← 歮 [U+6B6E] | CJK Unified Ideographs | 歰 → [U+6B70] |
| ⻭ | U+2EED, &#12013; CJK RADICAL J-SIMPLIFIED TOOTH |
| ← ⻬ [U+2EEC] | CJK Radicals Supplement | ⻮ → [U+2EEE] |

## Translingual

| Traditional | 齒 |
| Shinjitai | 歯 |
| Simplified | 齿 |

### Han character

歯 (Kangxi radical 77, 止+8, 12 strokes, cangjie input 卜一山火木 (YMUFD), four-corner 2177$_2$, composition ⿱止⿶凵米)

#### Derived characters

* 噛, 𬹴, 𮣁, 𮮾, 齢, 𪗱, 𫠚, 𮯃, 𮯅, 𪘚, 𮯇, 𮯈, 𮯋, 𮯌, 𮯎, 𪘂, 𬬜

#### Related characters

* 齒 (Orthodox traditional form)
* 齿 (Simplified form of 齒 in mainland China)

#### References

* Kangxi Dictionary: not present, would follow page 576, character 42
* Dai Kanwa Jiten: character 16323
* Dae Jaweon: page 967, character 14
* Hanyu Da Zidian (first edition): volume 2, page 1443, character 16
* Unihan data for U+6B6F

## Chinese
### Glyph origin

Unorthodox variant simplified from 齒 (⿳从一从 → 米 (mǐ)) found in various moveable type copies of classical novels.
First attested in 《宋元以來俗字譜》, a variant forms dictionary compiled in 1930.

### Definitions

* For pronunciation and definitions of 歯 – see 齒 (“tooth; tooth- or zigzag-like thing, such as a sawtooth, cogwheel, or fern; etc.”). (This character is a variant form of 齒).

### References

Dictionary of Chinese Character Variants (教育部異體字字典), A04796-005-1

## Japanese

| Shinjitai | 歯 |
| Kyūjitai | 齒 |

### Kanji

(Third grade kyōiku kanji, shinjitai kanji, kyūjitai form 齒)
* tooth
* age

#### Readings

* Go-on: し (shi, Jōyō)
* Kan-on: し (shi, Jōyō)
* Kun: は (ha, 歯, Jōyō)、よわい (yowai, 歯)

#### Compounds

* 臼(うす)歯(ば) (usuba)
* 上(うわ)歯(ば) (uwaba)
* 奥(おく)歯(ば) (okuba)
* 仮(か)歯(し) (kashi)
* 臼(きゅう)歯(し) (kyūshi)
* 歯(し)牙(が) (shiga)
* 歯(し)槽(しょう) (shishō)
* 歯(し)序(じょ) (shijo)
* 下(した)歯(ば) (shitaba)
* 歯(し)朶(だ) (shida)
* 歯(し)徳(とく) (shitoku)
* 歯(し)列(れつ) (shiretsu)
* 歯(は)医(い)者(しゃ) (haisha)
* 歯(は)形(がた) (hagata)
* 歯(は)痒(がゆ)い (hagayui)
* 歯(は)茎(ぐき) (haguki)
* 歯(は)ブラシ (haburashi)
* 虫(むし)歯(ば) (mushiba)

### Etymology 1

* Kanji in this term
* 歯
* は Grade: 3
* kun'yomi
* Alternative spellings
* 齒 (kyūjitai) H (abbreviation) 牙
/pa/ > /ɸa/ > /ha/.
From Old Japanese, from Proto-Japonic *pa. Cognate with Okinawan 歯 (hā).

#### Pronunciation

* (Tokyo) は [háꜜ] (Atamadaka –)
* IPA: [ha̠]

#### Noun

歯(は) • (ha)
* tooth
    歯(は)が痛(いた)い。
       Ha ga itai.
       My teeth hurt.
    １(いち)日(にち)に少(すく)なくとも ２(に)度(ど)歯(は)を磨(みが)くことが重(じゅう)要(よう)である。
       Ichinichi ni sukunakutomo nido ha o migaku koto ga jūyō de aru.
       It is important to brush your teeth at least twice a day.
** 1603, Vocabvlario da Lingoa de Iapam (Nippo Jisho) [Vocabulary of the Language of Japan] (in Portuguese), Nagasaki, page 191:Fa. ハ (歯). Faga iru, l, ita. (歯が齭る, または, 齭た) 歯が浮く. Fauo nuqu. (歯を抜く) 歯を抜き取る. Faga nuquru. (歯が抜くる) 歯が抜けて落ちる. Fauo camu. (歯を嚙む) 歯をかみしめる, 合わせ閉じる. Fauo dasu. (歯を出す) 怒って歯をむき出す. Faga vqu. (歯が浮く) 歯が浮く, または, ぐらぐらする. Faga yurugu. (歯が揺ぐ) 歯が動く. Fauo curomuru. l, caneuo tçuquru. (歯を黒むる. または, 鉄漿を付くる) 歯を黒く染める.(please add an English translation of this quotation)
* (typography) a unit equal to 1 Q (kyū) and 0.25 mm, abbreviated as H; ha is used for spacing, while Q is used for font size

### Etymology 2

* Kanji in this term
* 歯
* し Grade: 3
* on'yomi
* Alternative spelling
* 齒 (kyūjitai)
From Middle Chinese 齒 (MC tsyhiX).

#### Pronunciation

* (Tokyo) し [shíꜜ] (Atamadaka –)
* IPA: [ɕi]

#### Noun

歯(し) • (shi)
* tooth
* age

##### Derived terms

* 歯(し)を没(ぼっ)す (shi o bossu): die

### Etymology 3

* Kanji in this term
* 歯
* よわい Grade: 3
* kun'yomi
* Alternative spellings
* 齒 (kyūjitai) 齢
/yopapi/ > /yoɸaɸi/ > /yowawi/ > /yowai/.

#### Pronunciation

* (Tokyo) よわい [yòwáí] (Heiban – [0])
* (Tokyo) よわい [yòwáꜜì] (Nakadaka –)
* IPA: [jo̞β̞a̠i]

#### Noun

歯(よわい) • (yowai)
* age

### References

* 1 2 3 Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN
* 1 2 3 NHK Broadcasting Culture Research Institute, editor (1998), NHK日本語発音アクセント辞典 [NHK Japanese Pronunciation Accent Dictionary] (in Japanese), Tokyo: NHK Publishing, Inc., →ISBN
   * Doi, Tadao (1603–1604) Hōyaku Nippo Jisho (in Japanese), Tōkyō: Iwanami Shoten, published 1980, →ISBN.

## Okinawan
### Kanji

(Third grade kyōiku kanji, shinjitai kanji, kyūjitai form 齒)

#### Readings

* Kun: はー (hā, 歯)

#### Compounds

* 歯(はー)病(や)ん (hāyan, “toothache”)
* 歯(はー)病(や)み (hāyami, “toothache”)

### Etymology

* Kanji in this term
* 歯
* はー Grade: 3
* Alternative spelling
* 齒 (kyūjitai)
From Proto-Ryukyuan *pa, from Proto-Japonic *pa. Cognate with mainland Japanese 歯 (ha) and Kunigami 歯 (pā).

### Pronunciation

* IPA: /haː/

### Noun

歯(はー) (hā)
* tooth

### References

* “はー【歯】” in JLect - Japonic Languages and Dialects Database Dictionary, 2019.
* Doi, Tadao (1603–1604) Hōyaku Nippo Jisho (in Japanese), Tōkyō: Iwanami Shoten, published 1980, →ISBN.