kháu口

mouth

mouth, especially the lips and internal mouth cavity; entrance; opening; mouth (of an object); gateway; mountain pass; hole; cut

anatomy

English Wiktionary, “口” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%8F%A3 · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)