Mas ‧ ter ‧ Card /ˈmɑːstəkɑːd $ ˈmæstərkɑːrd/ BrE AmE trademark
1 . a large international ↑ credit card system operated by a group of banks
2 . a credit card belonging to the MasterCard system, used for obtaining goods and services which the user pays for later:
Do you take MasterCard?