cardboard

thin cardboard, usually rectangular

plural of cardboard n

n a game played with playing cards n one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes n a card certifying the identity of the bearer n a rectangular piece of stiff paper used to send messages (may have printed greetings or pictures) n thin cardboard, usually rectangular n a witty amusing person who makes jokes n a sign posted in a public place as an advertisement n a printed or written greeting that is left to indicate that you have visited n (golf) a record of scores (as in golf) n a list of dishes available at a restaurant n (baseball) a list of batters in the order in which they will bat n a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities v separate the fibers of v ask someone for identification to determine whether he or she is old enough to consume liquor

a box made of cardboard

a book with cardboard or cloth or leather covers