A strategem is a clever plan or scheme used to outwit an opponent. The term can be broken down into four distinct parts: PLOY, RUSE, WILE, and TRAP. A PLOY is a clever trick or stratagem used to gain an advantage. A RUSE is a deceptive MANEUVER or trick intended to mislead or deceive. A WILE is a cunning or crafty device used to outwit someone. Finally, a TRAP is a cleverly devised scheme or trick used to ensnare someone. Together, these four terms form the word strategem, which is a clever plan or scheme used to outwit an opponent.