/ Dictionary / Index M Macdonough: Meaning and Definition of Find definitions for: Mac•don•ough Pronunciation: (muk-don'u), [key] — n. 1783–1825, U.S. naval officer: defeated British on Lake Champlain 1814. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Macdonald MacDowell Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language