MC
US /ˌemˈsiː/
UK /ˌemˈsiː/

1.
a master of ceremonies, who hosts an event or performs at a musical show
:
•
The MC kept the crowd entertained throughout the concert.
•
She's a talented rapper and a great MC.
1.
an abbreviation for 'Master of Ceremonies'
:
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The event program listed the MC for the evening.
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Please welcome our MC, John Doe!