Meanings
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1
noun
the part of a pipe, musical instrument, telephone, or similar device placed at or near the mouth
He removed the pipe's mouthpiece and cleaned it carefully.
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2
noun
a protective guard worn over the teeth and gums in contact sports
The boxer adjusted her mouthpiece before the next round.
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3
noun
a person, publication, or organization that expresses the views of another person or group, often uncritically
Critics dismissed the newspaper as a mouthpiece for the ruling party.
Thesaurus
Etymology
A compound of mouth + piece. The literal senses name a component used at or near the mouth. The figurative sense treats a representative or publication as the part through which another person or organization speaks.