/ Dictionary / Index M mistress of ceremonies: Meaning and Definition of Find definitions for: mis'tress of cer'emonies Pronunciation: [key] a woman who directs the entertainment at a party, dinner, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mistress mistrial Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language