A casino is a large room in which games of chance are played. The term is most often used to refer to a place where gambling is legalized, such as in Las Vegas and Atlantic City. However, it may also refer to a smaller gambling establishment in which gambling is not legalized, such as those located on Native American reservations.

A person who works in a casino is called a dealer or croupier. They are usually trained to ensure fairness in all aspects of the game, and they must maintain a professional demeanor at all times. They must be familiar with all rules and regulations, including those related to minimum and maximum bets. The dealer must also be familiar with the various mathematical strategies for specific games, such as blackjack.

In the United States, casinos are generally licensed and regulated by state governments. The minimum age for casino gaming varies by state and type of gambling product. The majority of casinos are concentrated in the states of Nevada and New Jersey, with a small number located in Chicago, and a few in other cities.

A casino offers a variety of games to its patrons, ranging from traditional table games such as blackjack and craps, to random number games such as roulette and baccarat. In addition, most modern casinos also offer a variety of electronic poker variants, and many host regular poker tournaments. Moreover, many casinos have entertainment offerings such as shows and fine dining to provide patrons with the opportunity to celebrate their wins or commiserate their losses with friends.