/ Dictionary / Index C Cumberland Gap: Meaning and Definition of Find definitions for: Cum'berland Gap' Pronunciation: [key] a pass in the Cumberland Mountains at the junction of the Virginia, Kentucky, and Tennessee boundaries. 1315 ft. (401 m) high. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cumberland Cumberland Mountains Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language