- (n.) One who delivers the opinion of others or of another; a spokesman; as, the mouthpiece of his party.
- (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.
- (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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mouthpiece. Retrieved September 28, 2026, from http://smartdefine.org/mouthpiece/definitions/2034854 |
| Chicago | Webster's. 2011. "mouthpiece" http://smartdefine.org/mouthpiece/definitions/2034854 (accessed September 28, 2026). |
| Harvard | Webster's 2011, mouthpiece, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/mouthpiece/definitions/2034854>. |
| MLA | Webster's. "mouthpiece" 27 May 2011. Web. 28 September 2026. <http://smartdefine.org/mouthpiece/definitions/2034854> |