noun (n)

• a maneuver in a game or conversation(noun.act)

  Synonym:
  gambit, ploy
  

  source: wordnet30
• an elaborate or deceitful scheme contrived to deceive or evade(noun.cognition)

  Synonym:
  contrivance, dodge
  

  source: wordnet30
• An artifice or trick in war for deceiving the enemy; hence, in general, artifice; deceptive device; secret plot; evil machination.(noun)

  source: webster1913