Gambling is the act or activity of betting money, for example in card games or on horse racing. Gambling is a form of entertainment. gambling casinos. when people risk money or possessions on the result of something which is not certain, such as a card game or a horse race betting. Betting or staking of something of value on the outcome of a game or event. Commonly associated with gambling are horse racing, boxing, numerous playing-card and dice games, cockfighting, jai alai, recreational billiards and darts, bingo, and lottery. In most gambling games it is customary to express the idea of probability in terms of "odds against winning." In the U.S. casino gambling, once highly restricted, is now legal in many states, and lotteries are employed by many states to raise revenues. The Internet has also become a venue for placing bets. See also bookmaking; casino
the act of playing for stakes in the hope of winning (including the payment of a price for a chance to win a prize); "his gambling cost him a fortune"; "there was heavy play at the blackjack table