/ Dictionary / Index X Xn.: Meaning and Definition of Find definitions for: Xn. Pronunciation: [key] Christian. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Xmas Xnty. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language