master of ceremonies
US /ˌmæs.tər əv ˈser.ə.moʊ.niz/
UK /ˌmæs.tər əv ˈser.ə.moʊ.niz/
1.
the person who is in charge of an event, introduces the speakers or performers, and ensures the smooth running of the program
:
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The comedian was an excellent master of ceremonies for the awards show.
•
She was asked to be the master of ceremonies at the wedding reception.