/ Dictionary / Index M MW: Meaning and Definition of Find definitions for: MW Pronunciation: [key] megawatt; megawatts. mW Pronunciation: [key] milliwatt; milliwatts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. MVP M.W.A. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language