/ Dictionary / Index R roommate: Meaning and Definition of Find definitions for: room•mate Pronunciation: (rm'māt", room'-), [key] — n. a person who is assigned to share or shares a room or apartment with another or others. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: roommate (Thesaurus) rooming-in room mother Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language