A card is a piece of stiff paper or thin cardboard on which something is written or printed.

A card is a piece of cardboard or plastic, or a small document, which shows information about you and which you carry with you, for example to prove your identity.

A card is a rectangular piece of plastic, issued by a bank, company, or shop, which you can use to buy things or obtain money.

A card is a folded piece of stiff paper with a picture and sometimes a message printed on it, which you send to someone on a special occasion.

A card is the same as a postcard.

A card is a piece of thin cardboard carried by someone such as a business person in order to give to other people. A card shows the name, address, telephone number, and other details of the person who carries it.

Cards are thin pieces of cardboard with numbers or pictures printed on them which are used to play various games.

If you are playing cards, you are playing a game using cards.

You can use card to refer to something that gives you an advantage in a particular situation. If you play a particular card, you use that advantage.

Card is strong, stiff paper or thin cardboard.

In computing, a card is a circuit board that can be put into a computer to provide additional memory or functions.

You can use card to refer to a series of races or matches at a particular sporting event.

If you are carded, someone in authority asks you to show a document to prove that you are old enough to do something, for example, to buy or drink alcohol.