Reward cards refer to a type of credit card that offers rewards or incentives for using it. These rewards can come in various forms, such as cash back, travel points, merchandise discounts, and more. The idea behind reward cards is to encourage consumers to use the card frequently by offering them something valuable in return. This type of credit card often comes with an annual fee or high interest rates, so it's important for consumers to carefully consider whether the rewards offered are worth the cost.