Synonyms of 'speaker'
oratorDictionary, public speaker, lecturer
He was not a good speaker.
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A lecturer is a teacher at a university or college.
a lecturer in Law at Southampton University
The mouthpiece of an organization or person is someone who informs other people of the opinions and policies of that organization or person.
Their mouthpiece is the vice-president.
An orator is someone who is skilled at making formal speeches, especially ones which affect people's feelings and beliefs.
Lenin was the greatest orator of the Russian revolution.
Thesaurus for speaker from the Collins English Thesaurus
A speaker at a meeting , conference , or other gathering is a person who is making a speech or giving a talk .