Definition, synonyms and related words
A credit card issued by the credit card company MasterCard.
"She paid for her groceries using a Mastercard to access funds from her checking account."
In plain English: A Mastercard is a plastic card that lets you pay for things by borrowing money from your bank until they send it to you later.
"I used my Mastercard to buy groceries at the supermarket today."
The word is a straightforward combination of "master," referring to the founding company's name, and "card." It was coined to describe the credit cards issued by this specific organization.