Meaning : A part that goes over or into the mouth of a person.
Example :
The mouthpiece of a respirator.
Meaning : An acoustic device. The part of a telephone into which a person speaks.
Meaning : (especially boxing) equipment that protects an athlete's mouth.
Synonyms : gumshield
Meaning : The tube of a pipe or cigarette holder that a smoker holds in the mouth.
Meaning : The aperture of a wind instrument into which the player blows directly.
Synonyms : embouchure