/ Dictionary / Index M mystery play: Meaning and Definition of Find definitions for: mys'tery play" Pronunciation: [key] a medieval dramatic form based on a Biblical story, usually dealing with the life, death, and resurrection of Christ. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mystery mystic Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language