Definition of "emcee"

emcee

/ˌɛmˈsiː/

noun
plural emcees
1. Alternative form of MC in its senses as
  1. Master of ceremonies.
    Quotations
    "I'm the emcee for tonight," he proclaimed. "I'll announce your program."
    1943, "Franklin W. Dixon" (Charles Leslie McFarlane), Hardy Boys 22: The Flickering Torch Mystery
  2. (music) A rapper.
    Quotations
    […] mutating into all-star line-ups of emcees spitting hot bars over familiar beats, then to a single crew spitting bars over familiar beats, then eventually to a single crew (or artist) spitting bars over unfamiliar beats.
    2021, Jehnie I. Burns, Mixtape Nostalgia: Culture, Memory, and Representation (page 138)
verb
third-person singular simple present emcees, present participle emceeing, simple past and past participle emceed
1. (transitive, intransitive) To act as the master of ceremonies (for).
  Quotations
  Alan Lomax was emceeing the blues workshop and was turned off by the Paul Butterfield Jug Band and implied as much on stage.
  1965 August, Mississippi Phil Ochs, “The Newport Fuzz Festival”, in The Realist‎, number 61, retrieved 2022-11-13, page 11
2. (intransitive, music) To rap as part of a hip-hop performance.