mouthpiece

American  

[mouth-pees] / ˈmaʊθˌpis /

noun

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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Etymology

Origin of mouthpiece

First recorded in 1675–85; mouth + piece

Example Sentences

As the business community’s primary mouthpiece, he has met with the mayor and state legislators and warned them that higher taxes could cause the city’s business elite to flee.

From The Wall Street Journal • Mar. 25, 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

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

Chase had been guilty of that behavior before against the division rival Steelers, grabbing the mouthpiece of defensive back Ahkello Witherspoon and flipping off safety Minkah Fitzpatrick during a game in 2022.

From Los Angeles Times • Nov. 18, 2025

Billy’s mouthpiece had fallen to the canvas and the referee kicked it toward his corner.

From "145th Street: Short Stories" by Walter Dean Myers