A "rebuy" refers to the process of purchasing an item again after the initial purchase. This term is commonly used in various contexts, such as retail, online shopping, and subscription services. Customers may choose to rebuy products they found satisfactory or necessary, ensuring they have a continuous supply of the item. In the context of gambling, particularly in poker tournaments, a rebuy allows players to buy back into the game after losing all their chips. This option can enhance the competition and increase the prize pool, as players can re-enter the tournament multiple times if they choose to do so.