Synonyms of 'mouthpiece'
Their mouthpiece is the vice-president.
The newspaper is regarded as a mouthpiece of the ministry.
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An agent is a person who looks after someone else's business affairs or does business on their behalf.
You are buying direct, rather than through an agent.
A delegate is a person who is chosen to vote or make decisions on behalf of a group of other people, especially at a conference or a meeting.
The rebels' chief delegate repeated their demands.
Thesaurus for mouthpiece from the Collins English Thesaurus
The mouthpiece of a telephone is the part that you speak into.