1. Noun
The part of a musical or other instrument to which the mouth is applied in using it; as, the mouthpiece of a bugle, or of a tobacco pipe.
2. Noun
An appendage to an inlet or outlet opening of a pipe or vessel, to direct or facilitate the inflow or outflow of a fluid.
3. Noun
One who delivers the opinion of others or of another; a spokesman; as, the mouthpiece of his party.
4. Noun
the aperture of a wind instrument into which the player blows directly
Vocabulary classified under Art and design
5. Noun
a part that goes over or into the mouth of a person; "the mouthpiece of a respirator"
Vocabulary classified under Art and design
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