唇齿 chúnchǐ interdependent Origin Definitions Defs Strokes Stroke Words Sentences Sents 唇齿相依 chúnchǐxiāngyī interdependent closely related and mutually dependent, as close as lips and teeth唇齿音 chúnchǐyīn labiodental labiodental (e.g. the consonant f in standard Chinese)