mouthpiece

Noun

• the aperture of a wind instrument into which the player blows directly

• the tube of a pipe or cigarette holder that a smoker holds in the mouth

• (especially boxing) equipment that protects an athlete's mouth

• a spokesperson (as a lawyer)

• an acoustic device; the part of a telephone into which a person speaks

• a part that goes over or into the mouth of a person
  • the mouthpiece of a respirator
    

Related words

• Synonyms: 
  embouchure , gumshield , mouth