mouthpiece

American  

[mouth-pees] / ˈmaʊθˌpis /

noun

• mouthpieces
  plural

1. a piece placed at or forming the mouth, as of a receptacle or tube.

2. a piece or part, as of an instrument, to which the mouth is applied or which is held in the mouth.

   the mouthpiece of a trumpet.

3. the part of a bit or bridle, as for a horse, that passes through the animal's mouth.

4. a person, newspaper, etc., that conveys the opinions or sentiments of others; spokesperson.

5. Slang. a lawyer, especially a criminal lawyer.

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mouthpiece British  

/ ˈmaʊθˌpiːs /

noun

1. the part of a wind instrument into which the player blows

2. the part of a telephone receiver into which a person speaks

3. the part of a container forming its mouth

4. a person who acts as a spokesman, as for an organization

5. a publication, esp a periodical, expressing the official views of an organization

6. boxing another name for gumshield

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Other Word Forms

Noun Inflected Forms

• mouthpieces
  plural

Etymology

Origin of mouthpiece

First recorded in 1675–85; mouth + piece

Example Sentences

See Examples For:

mouthpiece mouthpieces

Kit Connor says working as a producer on the film alongside Joe Locke allowed them to be a "mouthpiece for the cast"

From BBC ● Jul. 16, 2026

However, the PLA Daily -- the Chinese military's mouthpiece -- said they were "corrupt elements" in a front-page editorial published Monday.

From Barron's ● Feb. 2, 2026

“It’s not to be a mouthpiece for anybody. It’s simply to be a mouthpiece for fairness and the pursuit of truth.”

From Los Angeles Times ● Jan. 27, 2026

As well as being one of only three carnyces found in Britain, it was "the most complete carnyx ever found, with the pipe, mouthpiece and bell all uniquely intact", he added.

From BBC ● Jan. 7, 2026

She’s gliding the slide down like her arm is part of the brass, her lips flat against the mouthpiece.

From "Muffled" by Jennifer Gennari

Many in the media and high ranking politicians, who are to some degree mouthpieces for and influencers of our society, are now the victims of the attempted shooting at the White House correspondents dinner.

From The Wall Street Journal ● May 4, 2026

The company may also be getting loyal mouthpieces.

From Slate ● Apr. 7, 2026

It supports a wide range of accessories—from glass mouthpieces to bubblers and dosing capsules.

From Salon ● Apr. 18, 2025

Players were supposed to have molded their mouthpieces by taking them home, putting them in boiling water, then cool water and biting down to get them to fit.

From Los Angeles Times ● Jul. 27, 2023

If it is possible, have a reed player and a brass player demonstrate to you the sounds that their mouthpieces make without the instrument.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones