/ Dictionary / Index M mfr.: Meaning and Definition of Find definitions for: mfr. Pronunciation: [key] — pl. mfrs. manufacture. manufacturer. M.Fr. Pronunciation: [key] Middle French. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. M.For. M.F.S. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language