/ Dictionary / Index O one-upmanship: Meaning and Definition of Find definitions for: one-up•man•ship Pronunciation: (wun'up'mun-ship"), [key] — n. the art or practice of achieving, demonstrating, or assuming superiority in one's rivalry with a friend or opponent by obtaining privilege, status, status symbols, etc.: the one-upmanship of getting into the president's car pool. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: one-upmanship (Thesaurus) one up one-way Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language