cardboard
A wood-based material resembling heavy paper, used in the manufacture of boxes, cartons and signs.
Other meanings
Something flat or insubstantial.
Synonyms
- composition board
A kind of
- paper
- packing material
Kinds of cardboard
- binder board
Related words
- corrugated cardboard
- cardboarded
- cardboarding
- cardboardy
- cardboard box
- cardboard city
Where this comes from
This definition is adapted from “cardboard” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.