mouthpiece
[noun]
Synonyms: spokesperson, agent, delegate, representative, spokesman or spokeswoman

[TahlilGaran] English Synonym Dictionary ▲

mouth‧piece /ˈmaʊθpiːs/ noun [countable]

1. the part of a musical instrument, telephone etc that you put in your mouth or next to your mouth:
Ben put his hand over the mouthpiece and shouted to me.

2. [usually singular] a person, newspaper etc that expresses the opinions of a government or a political organization
mouthpiece of
The newspaper was the mouthpiece of the National Democratic Party.

[TahlilGaran] Dictionary of Contemporary English ▲

mouthpiece
noun
I. part of a telephone
ADJ. phone/telephone
VERB + MOUTHPIECE cover (up), put your hand over He put his hand over the mouthpiece and called his wife to the phone.

[TahlilGaran] Collocations Dictionary ▲

mouthpiece
II. sb/sth that informs the public about sb/sth's opinions
ADJ. official, political
VERB + MOUTHPIECE act as, be
PREP. ~ for/of The media is controlled by the state and acts as a mouthpiece for the ruling party.

[TahlilGaran] Collocations Dictionary ▲