1. A part that goes over or into the mouth of a person
2. An acoustic device; the part of a telephone into which a person speaks.
3. The part of a pipe or cigarette holder that a smoker holds in the mouth.
4. The part of a wind instrument into which the player blows directly; SYN. embouchure.
5. (Especially boxing) Equipment that protects an athlete's mouth; SYN. gumshield.
6. (Informal) A spokesperson (as a lawyer); SYN. mouth. + prikaži više

In biology, part of a living body, such as the liver or brain, that has a distinctive function or set of functions.
A fully differentiated structural and functional unit in an animal that is specialized for some particular function