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 : spokesperson

b

slang : a criminal lawyer

Synonyms of mouthpiece

• 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

Just like Steph Curry, Clark chewed on his new mouthpiece throughout the game. —Dan Gelston, Chicago Tribune, 23 Mar. 2026

Just like Steph Curry, Clark chewed on his new mouthpiece throughout the game. —CBS News, 22 Mar. 2026

When Jalen Suggs tossed his mouthpiece off the court after he was bumped by LaMelo Ball roughly halfway through the first quarter of Thursday’s game at Charlotte, the Magic guard was quickly assessed a technical fine from official Scott Foster. —Jason Beede, The Orlando Sentinel, 21 Mar. 2026

Its strength lies in the creation of characters who, although sometimes forced to function stiffly as rhetorical mouthpieces, seem genuinely conflicted and caught off guard by the brutal interventions of history. —Justin Chang, New Yorker, 20 Mar. 2026

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