/ Dictionary / Index X x-height: Meaning and Definition of Find definitions for: x-height Pronunciation: (eks'hīt"), [key] — n. Typography. the height of a lowercase x. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Xerxes I Xhosa 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