Credit Card Glossary: Terms and Definitions

Over-blocking

Over-blocking is a term used to describe what a card issuing bank can do to prevent transactions of an undesired nature, such as online gambling. Similar to how card networks monitor merchant category codes (MCCs) to block charges that don’t comply with network policies or federal regulations, card issuing banks also have similar controls. For example, an issuing bank can decide not to approve a transaction that comes through with an MCC indicating a lottery purchase if they view it as a possible legal liability. This practice may vary between banks so check your cardholder agreement for purchase restriction specifics.

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.

cCarbon-paper packetsCard issuerCard-linked loyalty offersCard memberCard member agreementCard-not-present (CNP) transactionsCard-not-present fraudCard-present (CP) transactionsCard-present fraudCard-present transactionsCard readerCardersCardholderCardholder agreementCardingCarding forumsCash advanceCash advance checkCash advance feeCash advance rateCash backCash cardCasherCashingChapter 11 bankruptcyChapter 13 bankruptcyChapter 7 bankruptcyCharge-back periodCharge cardCharge-offCharge-off rateChargebackChip-and-PIN cardsChip and signatureChip cardChip-enabled terminalChoice of lawChurningClaims and defensesClearingCloningClosed-end loanClosed loopCo-branded cardCo-signerCOB fraudCollateralCollectionCollection-proofCombined guaranteeCommercial cardsCommercial credit scoreCommunity propertyConcierge serviceConjoined accountConsumer credit fileConsumer credit reportConsumer Financial Protection BureauContact chip cardContactless chip cardContactless paymentsConvenience checksConvenience feeCorporate credit cardCramdownCredit bureauCredit bureau risk scoreCredit cardCredit Card Accountability, Responsibility and Disclosure Act of 2009Credit CARD Act of 2009Credit card imprinter formCredit card numberCredit counselorCredit freezeCredit historyCredit inquiryCredit life insuranceCredit limitCredit lineCredit mixCredit monitoring serviceCredit mulingCredit obligationCredit ratingCredit Repair Organizations ActCredit reportCredit reporting agency (CRA)Credit scoreCredit unionCredit utilization ratioCreditors meetingCross-collateralizationCryptocurrencyCurrency conversion feeCVV