prolocutor
noun
pro·loc·u·tor prō-ˈlä-kyə-tər 
1
: one who speaks for another : spokesman
2
: presiding officer : chairman
Synonyms
- chair
- chairman
- chairperson
- moderator
- president
- presider
- speaker
See all Synonyms & Antonyms 
Example Sentences
was chosen as prolocutor of the international colloquium
Recent Examples on the Web There are many notable individuals worthy of that kind of invite, but Mitchell is a fantastic choice, a powerful prolocutor for college grads who need to hear and be fortified by what the man offers. 
Gordon Monson, The Salt Lake Tribune, 9 Apr. 2021
Gordon Monson, The Salt Lake Tribune, 9 Apr. 2021 Word History
Etymology
Middle English, from Latin, from pro- for + locutor speaker, from loqui to speak
First Known Use
15th century, in the meaning defined at sense 1
prolocutor
noun
as in chairperson
a person in charge of a meeting was chosen as prolocutor of the international colloquium Synonyms & Similar Words
Relevance
- chairperson
- chairman
- president
- moderator
- presider
- speaker
- chair
- cochairperson
- cochairman
- copresident
- cochairwoman
- chairwoman
- cochair