The Simple English Wiktionary has a definition for: card.

Card may refer to:

• Playing card
• Greeting card

Card may also refer to:

• Business card, contains contact details for a business or business person
• Magnetic stripe card, a plastic card with data stored on it
  • Credit card
  • Debit card
  • Smart card
• Membership card, given to a person when they become a member of a club or organisation
• Memory card, used to store digital data for computers
• Postcard, a card sent to friends or relatives while travelling, with a picture on one side and a message on the other
• Punched card, a card with information that is punched with holes
• Telephone card, used to pay for telephone calls
• Visiting card, used to identify a person as a visitor rather than staff

Computer hardware

• A small printed circuit board
  • Sound card, controls the sound
  • Video card, controls the graphics

Other uses

• ${\displaystyle card}$, when writing mathematics, a function that returns the cardinality of a set
• Arizona Cardinals, a National Football League team nicknamed the "Cards"
• St. Louis Cardinals, a Major League Baseball team nicknamed the "Cards"

This disambiguation page lists articles associated with the title Card. If an internal link led you here, you may wish to change the link to point directly to the intended article.