- 口齿不清 kǒuchǐbùqīng unclear articulationto speak in an indistinct or slurred manner, or to have a speech impediment such as a lisp
- 口齿清楚 kǒuchǐqīngchu articulationhaving clear diction or articulation; speaking distinctly
- 口齿生香 kǒuchǐshēngxiāng eloquent writingeloquence that generates perfume; profound and significant text
- 斗口齿 dòukǒuchǐ quarrelto engage in a verbal dispute or bickering
- 口齿伶俐 kǒuchǐlínglì articulateeloquent and fluent in speech; possessing the gift of the gab
- 发脱口齿 fātuōkǒuchǐ enunciationthe clarity, manner, and style of speech or vocal articulation