Pronunciation: (wun'up'mun-ship"), [key]
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. Also,one-ups•man•shipPronunciation: (wun'ups'mun ship"). [key]Also called upmanship, upsmanship.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.