A casino is a building or room where people gamble by placing cash or paper tickets with barcodes on machines that display random results. A casino may also have tables for games like blackjack and roulette, and a dance floor. Some casinos offer a mix of both skill-based and chance-based games, with players who know how to beat the house edge having an advantage over others.

The word casino is most often used in the context of a gambling establishment, but it can also refer to a gaming machine or an individual game. In the latter case, the term is more likely to be used in the sense of a table game that requires a dealer and can accommodate several players.

Casinos are generally staffed by dealers who deal the cards and oversee the games, while other employees handle customer service, security, food preparation, and cleaning. They are designed to create an environment that is comfortable and exciting for the players, and are often themed in a specific way to reflect this. In the United States, where most of these establishments are located, there are a variety of different types. Many have restaurants, and some even have night clubs and shows. Other amenities include shopping areas and sports betting. Some have hotel rooms and spas.