A wood-based material resembling heavy paper, used in the manufacture of boxes, cartons and signs.

Made of or resembling cardboard; (figuratively) flat or flavorless.

The flat appearance of objects in a scene in the absence of proper depth perception.

Covered or strengthened with cardboard.

plural of cardboard

An industrially prefabricated box made from cardboard, primarily used for packaging goods or materials and often recycled.

An area of a town where the homeless gather at night to shelter under makeshift constructions of discarded boxes and packing material.

plural of cardboard city

(rare) Resembling or characteristic of a cardboard box.

plural of cardboard box