mouthpiece

noun

mouth·​piece ˈmau̇th-ˌpēs How to pronounce mouthpiece (audio)
Synonyms of mouthpiecenext
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

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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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Pre-match, the tennis star also sported some custom jewelry from Filipino-American designer Chris Habana, including ear cuffs and a gold mouthpiece. — Alyssa Modos, PEOPLE, 31 Aug. 2026 Pulling up on the mouthpiece nozzle then releases the flow for drinking, just like with any other water bottle. — New Atlas, 31 Aug. 2026 As anyone at the Fed would point out, Treasury is the dollar’s mouthpiece. — John Tamny, Forbes.com, 30 Aug. 2026 Saliva collects at the mouthpiece and distorts the notes, making the blasts sound hoarse and off-pitch. — Lois K. Solomon, Sun Sentinel, 27 Aug. 2026 See All Example Sentences for mouthpiece

Word History

First Known Use

1673, in the meaning defined at sense 1

Time Traveler
The first known use of mouthpiece was in 1673

Rhymes for mouthpiece

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Browse Nearby Words

mouthpart
mouthpiece
mouthpipe
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Cite this Entry

“Mouthpiece.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouthpiece. Accessed 7 Sep. 2026.

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Kids Definition

mouthpiece

noun
mouth·​piece -ˌpēs How to pronounce mouthpiece (audio)
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

More from Merriam-Webster on mouthpiece

Britannica.com: Encyclopedia article about mouthpiece

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