/ Dictionary / Index C Christianism: Meaning and Definition of Find definitions for: Chris•tian•ism Pronunciation: (kris'chu-niz"um), [key] — n. the beliefs and practices of Christians. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Christiania Christianity Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language