- 1the part of the telephone that is next to your mouth when you speak He put his hand over the mouthpiece and called his wife to the phone.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
-
2the part of a musical instrument that you place between your lips
- 3(usually disapproving) mouthpiece (of/for somebody) a person, newspaper, etc. that speaks on behalf of another person or group of people The newspaper has become the official mouthpiece of the opposition party. The Press Secretary serves as the President's mouthpiece.
Check pronunciation: mouthpiece