Credit Card Glossary: Terms and Definitions
An index is a benchmark rate, such as the prime rate or LIBOR, to which a margin is added to calculate a variable interest rate. For example, if your credit card agreement says your interest rate is prime plus 10 percent, and the prime rate is at 4 percent, your credit card’s interest rate will be 14 percent.
Terms from A-Z
Search the CreditCards.com glossary for every credit-related term from "account holder" to "zombie debt." Select a letter for alphabetized terms and definitions.