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Related to credit card: discover, American Express
A card entitling the owner to use funds from the issuing company up to a certain limit. The holder of a credit card may use it to buy a good or service. When one does this, the issuing company effectively gives the card holder a loan for the amount of the good or service, which the holder is expected to repay. Most credit cards have variable and relatively high interest rates on these loans. Credit cards also have a limit, which may be raised or lowered depending on the creditworthiness of the card holder. Most analysts recommend treating a credit card as a short-term loan, as allowing the interest to compound for too long may result in dire financial straits.