mouthpiece

noun

mouth·​piece ˈmau̇th-ˌpēs 

1

: something placed at or forming a mouth

2

: a part (as of an instrument) that goes in the mouth or to which the mouth is applied

3

a

: one that expresses or interprets another's views : spokesman

b

slang : a criminal lawyer

Synonyms

• spokesperson
• spokesman

Examples of mouthpiece in a Sentence

the mouthpiece of a trumpet

He's been acting as a mouthpiece for the government on questions of foreign policy.

The company has hired an attorney as a mouthpiece to answer its critics.

Recent Examples on the Web

Communist Party mouthpiece People’s Daily on Tuesday alluded to that point in an editorial that aimed to tamp down on the widespread backlash to the initiative. —Simone McCarthy, CNN Money, 2 Oct. 2025

In a world where hallowed news organizations transform into conservative mouthpieces and ​milquetoast late-night jokes are grounds for suspension, satirical headlines from the Onion can feel closer to real life than parody. —Manisha Krishnan, Wired News, 25 Sep. 2025

These vampiric bugs use needle-like mouthpieces to locate a capillary and inject saliva containing anesthetics and anticoagulants into its host allowing blood to flow freely into their stomachs for several minutes. —Katie Nixon, Nashville Tennessean, 23 Sep. 2025

Whitney’s breakdowns, whether in a law office or in the corner-window executive suite of her boss, turn the character into a mouthpiece for women’s issues rather than a person who actually cares about this stuff. —Ryan Lattanzio, IndieWire, 19 Sep. 2025

Word History

First Known Use

1673, in the meaning defined at sense 1

Rhymes for mouthpiece

• apiece
• aris
• assise
• caprice
• cerise
• decease
• decrease
• eyepiece
• facepiece
• handpiece
• headpiece
• increase

Kids Definition

mouthpiece

noun

mouth·​piece -ˌpēs 

1

: the part put to, between, or near the lips

the mouthpiece of a trumpet

the mouthpiece of a telephone

2

: someone who expresses another person's ideas : spokesperson