/ Dictionary / Index B Bighorn Mountains: Meaning and Definition of Find definitions for: Big'horn Moun'tains Pronunciation: [key] a mountain range in N Wyoming, part of the Rocky Mountains. Highest peak, Cloud Peak, 13,165 ft. (4013 m). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bighorn big house Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language