/ Dictionary / Index M missay: Meaning and Definition of Find definitions for: mis•say Pronunciation: (mis-sā'), [key] — v., -said, -say•ing. —v.t. to say or speak ill of; vilify; slander. to say wrongly. —v.i. to speak wrongly or incorrectly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. missal stand misseem Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language