Breadcrumb Home > 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: tendentious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language