/ Dictionary / Index H holily: Meaning and Definition of Find definitions for: ho•li•ly Pronunciation: (hō'lu-lē), [key] — adv. in a pious, devout, or sacred manner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. holier-than-thou holiness Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language