/ Dictionary / Index M Mount Washington: Meaning and Definition of Find definitions for: Mount" Wash'ington. Pronunciation: [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mount Vernon Mount Wilson Observatory Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language