mouthpiece meaning and definition

MOUTHPIECE noun

Definition of mouthpiece (noun)

1. a part that goes over or into the mouth of a person
   • "the mouthpiece of a respirator"
2. an acoustic device; the part of a telephone into which a person speaks
3. a spokesperson (as a lawyer)
   • synonyms: mouth
4. (especially boxing) equipment that protects an athlete's mouth
   • synonyms: gumshield
5. the tube of a pipe or cigarette holder that a smoker holds in the mouth
6. the aperture of a wind instrument into which the player blows directly
   • synonyms: embouchure