/ Dictionary / Index X x in: Meaning and Definition of Find definitions for: x in Pronunciation: [key] — Stock Exchange. Stock Exchange. ex interest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ximenes Xing Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language