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Credit Card Glossary: Terms and Definitions

Confused by credit card terms?'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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The process of converting a sensitive piece of data, such as a primary account number, into a unique, nonsensitive equivalent -- a "token" -- that retains the original data's essential information without compromising security. Tokenization is a process used in an increasing number of credit card transactions to enhance their security.