/ Dictionary / Index I inmate: Meaning and Definition of Find definitions for: in•mate Pronunciation: (in'māt"), [key] — n. a person who is confined in a prison, hospital, etc. a person who dwells with others in the same house. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inmate (Thesaurus) inly in medias res* Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language