/ Dictionary / Index S Slide Mountain: Meaning and Definition of Find definitions for: Slide' Moun'tain Pronunciation: [key] a mountain in SE New York: highest peak of the Catskill Mountains. 4204 ft. (1280 m). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Slidell slider Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language