/ Dictionary / Index T Twin Falls: Meaning and Definition of Find definitions for: Twin' Falls' Pronunciation: [key] a city in S Idaho. 26,209. a waterfall near there, on the Snake River. ab. 180 ft. (55 m) high. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twin-engine twinflower Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language