From Longman Dictionary of Contemporary Englishoratoror‧a‧tor /ˈɒrətə $ ˈɔːrətər, ˈɑː-/ noun [countable] formal TALK/MAKE A SPEECHsomeone who is good at making speeches and persuading people
Examples from the Corpus
orator• Yet what alternative was there for a female orator?• Jean-Bertrand Aristide, a fiery orator and champion of the poor won the election in a landslide.• Keyes is a fiery orator who built his campaign around his anti-abortion stand.• Ogilvy had a reputation as a great orator.• He knows he is no orator, and he is up against a president who could charm a loan from a thief.• While Tom got ready I walked around the area to check on what the other orators at Speakers' Corner were saying.• Aristotle once recommended to the would-be polemical orator that paradox could be effective.• On the other hand Osman was a practised orator and knew what he was doing.• He was the soapbox orator who could quote Virgil or Shakespeare to give dignity to a bitter grudge. 