/ Dictionary / Index M Mount Lebanon: Meaning and Definition of Find definitions for: Mount" Leb'anon Pronunciation: [key] a town in SW Pennsylvania, SW of Pittsburgh. 34,414. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mountlake Terrace Mount McKinley National Park Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language