齿 ⇒
牙齿 yáchǐ, [牙齒], tooth/dental/CL:顆|颗[kē]
齿 chǐ, [齒], tooth/CL:顆|颗[kē]
齿轮 chǐlún, [齒輪], (machine) gear/pinion (gear wheel)
难以启齿 nányǐqǐchǐ, [難以啟齒], to be too embarrassed to mention sth (idiom)/to find it hard to speak about sth
锯齿 jùchǐ, [鋸齒], sawtooth
口齿 kǒuchǐ, [口齒], mouth and teeth/enunciation/to articulate/diction/age (of cattle, horses etc)
臼齿 jiùchǐ, [臼齒], molar tooth
不齿 bùchǐ, [不齒], to despise/to hold in contempt
启齿 qǐchǐ, [啟齒], to open one's mouth/to start talking
犬齿 quǎnchǐ, [犬齒], canine tooth
智齿 zhìchǐ, [智齒], wisdom tooth
咬牙切齿 yǎoyáqièchǐ, [咬牙切齒], gnashing one's teeth (idiom); displaying extreme anger/fuming with rage between ...
剑齿虎 jiànchǐhǔ, [劍齒虎], saber-toothed tiger
伶牙俐齿 língyálìchǐ, [伶牙俐齒], clever and eloquent (idiom); fluent/having the gift of the gab
羞于启齿 xiūyúqǐchǐ, [羞於啟齒], to be too shy to speak one's mind (idiom)
龋齿 qǔchǐ, [齲齒], tooth decay/dental caries/cavity
乳齿 rǔchǐ, [乳齒], deciduous tooth/milk tooth/baby tooth
唇齿相依 chúnchǐxiāngyī, [唇齒相依], lit. as close as lips and teeth (idiom); closely related/interdependent
齿冠 chǐguān, [齒冠], crown of tooth
齿根 chǐgēn, [齒根], root of tooth
门齿 ménchǐ, [門齒], incisor
义齿 yìchǐ, [義齒], artificial tooth
何足挂齿 齿龈 chǐyín, [齒齦], gum/gingiva
前臼齿 qiánjiùchǐ, [前臼齒], premolar tooth (immediately behind canine teeth in some mammals)
齿条 chǐtiáo, [齒條], rack (and pinion)
齿龈炎 chǐyínyán, [齒齦炎], gingivitis
齿音 chǐyīn, [齒音], dental consonant
唇 ⇒
嘴唇 zuǐchún, lip/CL:片[piàn]
唇 chún, [脣], lip, variant of 唇[chún]
唇膏 chúngāo, lip balm/lipstick
兔唇 tùchún, hare lip (birth defect)
唇舌 chúnshé, argument/words/lips and tongue
唇枪舌剑 chúnqiāngshéjiàn, [唇槍舌劍], fight a battle of words/cross verbal swords
反唇相讥 fǎnchúnxiāngjī, [反唇相譏], to answer back sarcastically (idiom)/to retort
唇齿相依 chúnchǐxiāngyī, [唇齒相依], lit. as close as lips and teeth (idiom); closely related/interdependent
唇吻 唇裂