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

• mouth
• point man
• point person
• prophet
• speaker
• spokesman
• spokesperson

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

The Fajr Film Festival, once a national cinematic platform, evolved into a mouthpiece for the regime. —Ali Farahmand, IndieWire, 23 May 2025

Be sure to buy a cap for the mouthpiece, which all too easily can fall in the dirt or (worse) on an airport floor. —Danielle Hallock, AFAR Media, 16 May 2025

Raymond was their mouthpiece, their manager, and their benchmark. —Matthew Karp, Harpers Magazine, 29 Apr. 2025

Carbamide peroxide Type: Carbamide peroxide gel syringe, LED whitening mouthpiece Number of Treatments Included: 20 How to Use: After brushing your teeth and charging the LED whitening light, apply a thin line of gel to the top and bottom of the tray. —Iman Balagam, Vogue, 13 Apr. 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