abbreviation for Card Verification Code: a number on a credit card or debit card (= a card used for payment), usually three digits (= individual numbers) on the back of the card, that is used to prove that the person making the payment has the card in their possession

The full credit card number is reprinted in the signature box and at the end of the number is the CVC. 信用卡的完整号码也打印在签名栏里。这个号码的后面是银行卡验证码。

Can I have the CVC number from the back of your card, please? 能请您告诉我你卡片背面的验证码吗？