emcee /ˌɛmˈsiː/noun 3verb 2forms 3 noun3 •Master of ceremonies."I'm the emcee for tonight," he proclaimed. "I'll announce your program." — 1943 •A rapper. •Alternative form of MC in its senses as verb2 •To act as the master of ceremonies (for).Alan Lomax was emceeing the blues workshop and was turned off by the Paul Butterfield Jug Band and implied as much on stage. — 1965 •To rap as part of a hip-hop performance. formsemceed · emceeing · emcees