A piece of heavy paper stock used to record information to be stored in an index.

(inorganic chemistry) The magnesium salt of carbonic acid, MgCO₃; it is a white powdery solid that occurs as magnesite and other minerals; it used as a mild base and in numerous industrial applications

(US, card games) A playing card which has a picture on it: usually jack, queen or king, but sometimes an ace or joker

An early precursor of the business card, first produced at the beginning of the seventeenth century. / A trading card (such as a cigarette card).

A flash memory card for a digital camera. / A playing card which has a picture on it (usually Jack, Queen or King (coat card), but sometimes including Ace or Joker). / A trading card/trade card.

A collectible card, sometimes sticker, usually made out of paperboard or thick paper, which usually contains an image of a certain person, place or thing (fictional or real) and a short description of the picture, along with other text (attacks, statistics, or trivia). There is a wide variation of different types of cards, like sports, cars, natural history, film characters or other information of interest to purchasers. Sometimes is included with tobacco, food or confectionery products.

Synonym of cardinal point

A simple lamp that produces and burns acetylene (C₂H₂) created by the reaction of calcium carbide (CaC₂) with water.

Exhibiting or characteristic of weak cardinality

(Internet) A copy of an email message that is sent to a person (often one of many) other than the primary recipient without the express knowledge of the other recipients.