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dark horse definition

dark horse

  1. an unexpected winner in a horse race, thought beforehand to have very little chance
  2. an almost unknown contestant regarded by few as a likely winner
  3. ☆ Politics a person who gets or may get the nomination unexpectedly, often by a compromise

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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