The crossword solution for the term 'IT MIGHT BE A BLUFF' is RAISE, which is a five-letter word. Raising is a common tactic used in card games such as poker, where a player increases the amount of their bet in order to gain an advantage over their opponents. It is often used as a bluff, where the player is attempting to make their opponents think they have a better hand than they actually do. Raising can also be used to gain information about the strength of an opponent's hand.