齿 (chǐ): tooth, CL:顆|颗

齿 (chǐ) is a Chinese character meaning “tooth.” Classified as HSK Level 5 (HSK 3.0 Standard, CLEC 2022), it is composed of 止 (structural), 凵 (structural) and 人 (structural). It ranks #1756 in character frequency (SUBTLEX-CH corpus).

Etymologically pictographic, 齿 teeth 人凵; 止 provides the pronunciation. Its radical form 齿 (tooth) appears in many related characters such as 龄 (líng, age).

Spoken pronunciation

Definitions

  1. tooth
  2. CL:顆|颗

Etymology & Origin

齿

pictographicTeeth 人凵; 止 provides the pronunciation

Decomposition: ⿱止⿶凵人 (layout: top-bottom)

Stroke Order

1
2
3
4
5
6
7
8

Practice writing 齿 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

HSK Vocabulary with 齿

WordPinyinMeaningHSK
牙齿nounyá chǐtooth5

Common Compounds

WordPinyinMeaning
齿轮nounchǐ lún(machine) gear
难以启齿phrasenán yǐ qǐ chǐto be too embarrassed to mention sth (idiom)
锯齿nounjù chǐsawtooth
口齿nounkǒu chǐmouth and teeth
臼齿nounjiù chǐmolar tooth
不齿verbbù chǐto despise
启齿verbqǐ chǐto open one's mouth
犬齿nounquǎn chǐcanine tooth
智齿nounzhì chǐwisdom tooth
咬牙切齿phraseyǎo yá qiè chǐ(idiom) to gnash one's teeth
剑齿虎nounjiàn chǐ hǔsaber-toothed tiger
伶牙俐齿líng yá lì chǐclever and eloquent (idiom)
羞于启齿xiū yú qǐ chǐto be too shy to speak one's mind (idiom)
龋齿nounqǔ chǐtooth decay
乳齿nounrǔ chǐdeciduous tooth
100
Total compounds
24
As first character
44
As last character
32
As middle character

齿 appears in 100 compound words: 24 as the first character, 44 as the last, and 32 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.

Strongest Collocations

Characters that most frequently co-occur with 齿 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

锯jù
0.7142,324 co-occurrences
轮lún
0.5905,538 co-occurrences
牙yá
0.5887,140 co-occurrences
鲨shā
0.543508 co-occurrences
鳄è
0.515276 co-occurrences
唇chún
0.511666 co-occurrences
颊jiá
0.484102 co-occurrences
钝dùn
0.483160 co-occurrences
颤chàn
0.46492 co-occurrences
颗kē
0.458908 co-occurrences

Idioms & Chengyu (21)

不足齿数bù zú chǐ shùHSK 5+

not worth mentioning; not worth considering

phrase
不足挂齿bùzúguàchǐHSK 5+

not worth mentioning; nothing to speak of

phrase
齿颊生香chǐ jiá shēng xiāngHSK 7+

lit. to feel the taste in one's mouth (idiom); fig. to water at the mouth; to drool in anticipation

phrase
唇齿相依chúnchǐxiāngyīHSK 7+

to be closely related and mutually dependent (like the lips and teeth)

phrase
唇亡齿寒chúnwángchǐhánHSK 7+

to share a common lot; to share the same fate

phrase
发脱口齿fā tuō kǒu chǐHSK 5+

diction; enunciation

phrase
口齿不清kǒuchǐbùqīngHSK 5+

to have slurred speech; to be unable to speak clearly

phrase
露齿而笑lùchǐ'érxiàoHSK 6+

to grin

phrase
马齿徒增mǎ chǐ tú zēngHSK 6+

(self-deprecating) to have grown old without accomplishing anything (idiom)

phrase
没齿不忘mò chǐ bù wàngHSK 5+

see 沒齒難忘|没齿难忘

phrase
没齿难忘mòchǐnánwàngHSK 5+

memorable for the rest of one's life (usually for describing someone else's mercy or kind deed)

phrase
难以启齿nányǐqǐchǐHSK 6+

to be too embarrassed to mention something; to find it difficult to speak about something

phrase

Showing 12 of 21 idioms containing 齿.

Example Sentences

AI-Generated

齿字由8笔画组成,结构很巧妙。

chǐ zì yóu bǐ huà zǔ chéng , jié gòu hěn qiǎo miào .

The character "齿" consists of eight strokes and has a very ingenious structure.

IT之家Aug 2026

配备毛发防缠绕系统,不缠齿梳,毛发再多也不缠绕。

pèi bèi máo fā fáng chán rào xì tǒng , bù chán chǐ shū , máo fā zài duō yě bù chán rào .

Equipped with a hair anti-tangle system, the comb’s teeth won’t get tangled—no matter how much hair there is.

大紀元 | 大紀元新聞網Apr 2026

守住牙齿的根基 医师提醒:留意牙周病三警讯

shǒu zhù yá chǐ de gēn jī yī shī tí xǐng : liú yì yá zhōu bìng sān jǐng xùn

Protect the Foundations of Your Teeth: Dentists Warn to Watch for Three Warning Signs of Periodontal Disease

SmzdmApr 2026

...元咖啡不是低价陷阱,而是效率机器上的精准齿轮

. . . yuán kā fēi bù shì dī jià xiàn jǐng , ér shì xiào lǜ jī qì shàng de jīng zhǔn chǐ lún

...Yuan Coffee isn’t a low-price trap; it’s a precision gear in the machine of efficiency

Hk01.comMar 2026

...击场意外|员工玩枪走火 游客遭子弹穿脸断齿 事件后续曝

. . . jī chǎng yì wài yuán gōng wán qiāng zǒu huǒ yóu kè zāo zǐ dàn chuān liǎn duàn chǐ shì jiàn hòu xù pù

...Shooting Range Accident | Employee's Gun Accidentally Discharges; Visitor Shot in the Face, Loses Teeth; Further Details Emerge

三立新聞網Feb 2026

今天公生别铁齿!做这“8件事”恐穷整年

jīn tiān gōng shēng bié tiě chǐ ! zuò zhè 8 jiàn shì kǒng qióng zhěng nián

Today, you are born with iron teeth! Doing these "8 things" is afraid of poverty for a whole year

Tatoeba

他的牙齿被烟熏黄了。

Tā de yáchǐ bèi yānxūn huáng le.

His teeth are yellow from smoking too much.

Tatoeba

鳄鱼有尖利的牙齿。

èyú yǒu jiānlì de yáchǐ.

Crocodiles have sharp teeth.

Tatoeba

他用牙齿咬碎了核桃。

Tāyòng yáchǐ yǎo suì le hétao.

He cracked the walnut with his teeth.

Tatoeba

我在牙医那儿检查了牙齿。

Wǒ zài yáyī nàr jiǎnchá le yáchǐ.

I had my teeth examined at the dentist's.

Character Family

齿 Radical Family — Characters sharing the tooth radical

Related Characters

Homophones — Characters pronounced chǐ

Frequently Asked Questions

What does 齿 (chǐ) mean in Chinese?
齿 (chǐ) primarily means "tooth." It is classified as HSK Level 5, making it an advanced character. It ranks #1756 in character frequency.
How many strokes does 齿 have?
齿 is written with 8 strokes. The correct stroke order matters for recognition and handwriting speed — practice with the animated guide above to build proper technique.
What is the radical of 齿?
The radical associated with 齿 is 齿 (tooth). This radical appears in many characters related to tooth.
What are the components of 齿?
齿 is composed of: 止 (structural), 凵 (structural), 人 (structural). Its IDS decomposition is ⿱止⿶凵人 with a top-bottom layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 齿?
Common words with 齿 include: 牙齿 (yá chǐ, "tooth"); 齿轮 (chǐ lún, "(machine) gear"); 难以启齿 (nán yǐ qǐ chǐ, "to be too embarrassed to mention sth (idiom)"); 锯齿 (jù chǐ, "sawtooth"); 口齿 (kǒu chǐ, "mouth and teeth"). There are over 100 compound words containing this character.
What characters sound the same as 齿 (chǐ)?
Several characters share the pronunciation chǐ: 持 (to hold, to maintain), 吃 (to eat), 迟 (late), 池 (pool), and 5 more. Context and tones help distinguish between them in speech and writing.
Is 齿 the same in simplified and traditional Chinese?
Yes, 齿 is written the same way in both simplified and traditional Chinese.

Practice writing 齿 with real-time feedback

Trace stroke sequences, hear spoken pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.

Character data sourced from Unihan (Unicode Consortium), SUBTLEX-CH frequency corpus (Cai & Brysbaert, 2010), and Make Me a Hanzi (stroke data). Collocation strength measured via NPMI (Normalized Pointwise Mutual Information). Verified by the HanziFeed linguistics team.

HSK classification follows the HSK 3.0 Standard (Center for Language Education and Cooperation, CLEC, 2022 revision). Idiom data from Wiktionary (CC BY-SA 3.0).

Data last verified: March 2026.