Breadcrumb Home > Dictionary > Index X Xanax: Meaning and Definition of Find definitions for: Xan•ax Pronunciation: (zan'aks), [key] — Pharm. Trademark. Pharm. Trademark. a brand of alprazolam. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: xanax (Thesaurus) Xanadu xanth- ✖ Related Content Daily Word Quiz: tendentious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language