- 唇齿音 chúnchǐyīn labiodentala consonant sound produced by the upper teeth and the lower lip
- 半齿音 bànchǐyīn semi-dental soundpalatal nasal or palato-nasal initial sound in ancient Chinese phonology
- 舌齿音 shéchǐyīn interdental soundA speech sound produced by placing the tip of the tongue between the upper and lower teeth.