/ Dictionary / Index H High Holy Day: Meaning and Definition of Find definitions for: High' Ho'ly Day" Pronunciation: [key] — Judaism. Judaism. either of two holy days of special significance, Rosh Hashanah or Yom Kippur. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. highhole high horse 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