/ Dictionary / Index H hajj: Meaning and Definition of Find definitions for: hajj Pronunciation: (haj), [key] — pl. hajj•es. the pilgrimage to Mecca, which every adult Muslim is supposed to make at least once in his or her lifetime: the fifth of the Pillars of Islam. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hajj (Thesaurus) haji hajji Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language