| Subject | English | Finnish |
| IT, life.sc. | card code | reikäkorttikoodi |
| commun. | card issuer identifier code | kortin valmistajan tunnuskoodi |
| comp., MS | card validation code | kortin vahvistuskoodi (A code that credit card companies use to authorize credit card charges. For example, American Express uses a four-digit number on the front of the credit card, and Visa, MasterCard, and Discover use a three-digit number on the back) |