/ Dictionary / Index M men's room: Meaning and Definition of Find definitions for: men's' room" Pronunciation: [key] a public lavatory for men. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mens rea mens sana in corpore sano* Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language