/ Dictionary / Index M MH: Meaning and Definition of Find definitions for: MH Pronunciation: [key] Marshall Islands (approved for postal use). mH Pronunciation: [key] millihenry; millihenries. M.H. Pronunciation: [key] Medal of Honor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. MGy Sgt M.H.A. Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language