A "Dealer" is a person or business that buys and sells goods, often in a specific market. Dealers can operate in various industries, such as automobiles, art, or trading cards. They typically have expertise in their field and help customers find the products they need, often providing valuable information about quality and pricing. In the context of gambling, a dealer is responsible for managing the game at a casino table. They deal cards, handle bets, and ensure that the game runs smoothly. Dealers must understand the rules of the game, such as poker or blackjack, and maintain a fair environment for all players.