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Credit Card Glossary

Credit Card Glossary: Terms and Definitions

Confused by credit card terms? CreditCards.com's glossary of credit card definitions will help. From account holder to Regulation Z, we have defined the most-common and most-confusing credit card terms.

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Bank identification number (BIN)
A bank identification number (BIN) is the first six digits of a Visa or MasterCard account number. The bank identification number is used to identify the card-issuing institution.