qǔ chǐ 
		tooth decay
dental caries
cavity
		 
		
		
														
		
		
			 
		
				
		
			qǐ chǐ 
		to open one's mouth
to start talking
		 
		
		
														
		
		
					
				
		
			kǒu chǐ 
		mouth and teeth
enunciation
to articulate
diction
age (of cattle, horses etc)
		 
		
		
														
		
		
			 
		
				
		
			yǎo yá qiè chǐ 
		gnashing one's teeth (idiom); displaying extreme anger
fuming with rage between gritted teeth
		 
		
		
														
		
		
			 
		
				
		
			chǐ lún 
		(machine) gear
pinion (gear wheel)
		 
		
		
														
		
		
			 
		
				
		
			nán yǐ qǐ chǐ 
		to be too embarrassed to mention sth (idiom)
to find it hard to speak about sth
		 
		
		
														
		
		
			 
		
				
		
			bù chǐ 
		to despise
to hold in contempt
		 
		
		
														
		
		
			 
		
				
		
			chún chǐ 
		lit. lips and teeth (idiom); fig. close partners
interdependent
		 
		
		
														
		
		
			 
		
				
		
			mǎ chǐ xiàn 
		Portulaca oleracea (common purslane)
		 
		
		
														
		
		
			 
		
				
		
			hào chǐ 
		white teeth (symbol of youth and beauty)
		 
		
		
														
		
		
			 
		
				
		
			niè chǐ 
		a rodent (rat, rabbit etc)
		 
		
		
														
		
		
			 
		
				
		
			kǒu chǐ líng lì 
		eloquent and fluent speaker (idiom); grandiloquence
the gift of the gab
		 
		
		
														
		
		
			 
		
				
		
			lù chǐ 
		to grin
also pr. [lou4 chi3]
		 
		
		
														
		
		
			 
		
				
		
			kǒu chǐ bù qīng 
		to lisp
unclear articulation
inarticulate
		 
		
		
														
		
		
			 
		
				
		
			líng yá lì chǐ 
		clever and eloquent (idiom); fluent
having the gift of the gab
		 
		
		
		
		
			 
		
				
		
			qiè chǐ 
		to gnash one's teeth (in anger)
		 
		
		
														
		
		
			 
		
				
		
			chún chǐ xiāng yī 
		lit. as close as lips and teeth (idiom); closely related
interdependent
		 
		
		
														
		
		
			 
		
				
		
			guà chǐ 
		to mention (e.g. "don't mention it")
		 
		
		
														
		
		
			 
		
				
		
			niè chǐ lèi 
		rodents (rat, rabbit etc)
		 
		
		
														
		
		
			 
		
				
		
			xiū yú qǐ chǐ 
		to be too shy to speak one's mind (idiom)
		 
		
		
														
		
		
			 
		
				
		
			lún chǐ 
		tooth of cog wheel
gear tooth
		 
		
		
														
		
		
			 
		
				
		
			chún wáng chǐ hán 
		lit. without the lips, the teeth feel the cold (idiom); fig. intimately interdependent
		 
		
		
														
		
		
			 
		
				
		
			kǒu chǐ qīng chu 
		clear diction
clear articulation
		 
		
		
														
		
		
			 
		
				
		
			mò chǐ nán wàng 
		hard to forget even after one's teeth fall out (idiom); to remember a benefactor as long as one lives
undying gratitude
		 
		
		
														
		
		
			 
		
				
		
			niè chǐ mù 
		order of rodents (rats, squirrels etc)
		 
		
		
														
		
		
			 
		
				
		
			rǔ chǐ 
		deciduous tooth
milk tooth
baby tooth
		 
		
		
														
		
		
			 
		
				
		
			xiāo chú jù chǐ 
		anti-alias (computer graphics)
		 
		
		
														
		
		
			 
		
				
		
			chǐ gēng 
		dental transition (from milk teeth to adult teeth)