Coup

noun
  1. A sudden, violent, and illegal seizure of power from a government. noun
    The military staged a coup to overthrow the government.
    The coup led to the establishment of a new regime.
  2. A notable or successful stroke or move; an unexpected and impressive achievement. noun
    Winning the award was a major coup for the young actor.
    Securing the contract was a coup for the small company.
  3. In the context of the game of bridge, a maneuver that gains an advantage. noun
    He executed a coup by finessing the queen.
    The player's coup caught the opponents off guard.