(computing) A punch card (especially one that has had holes punched in it).

A greeting card that is decorated in a manner that celebrates Christmas.

A penalty card issued by an official in several sports for infractions. / (fencing) The most severe of penalties, which results in the fencer being expelled from the match.

A plastic card that has information stored on an embedded computer chip.

(Christianity) A religious card that states that a Catholic Mass has been said in honour of a dead person, or as a request for special favours such as improved health or success in a worldly endeavour.

(banking) A card similar to a credit card, but which withdraws funds directly from the bank account, rather than borrowing the funds from the issuer of the card.

plural of playing card

A written card which identifies the bearer, presented for introduction when attending a business meeting or formal social gathering.

(card games) A card that can be assigned any value or used to substitute for any needed card.

(Commonwealth of Nations) A police identification card, sometimes accompanied by a badge.