/ Dictionary / Index H high horse: Meaning and Definition of Find definitions for: high' horse' Pronunciation: [key] a haughty attitude or temper; a contemptuous manner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. High Holy Day high hurdles Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language