Mouthpiece1. (n.) 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. (n.) 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. (n.) One who delivers the opinion of others or of another; a spokesman; as, the mouthpiece of his party.
Thesaurus Entries
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