涅齿 nièchǐ to blacken the teeth Origin Definitions Defs Strokes Stroke Words Sentences Sents 涅 niè to dye black (literary) to dye black or tattoo齿 齒 chǐ noun tooth (bound form) tooth; teeth; refers specifically to the organs in the mouth used for chewing, as in 牙齿 yáchǐ