cardboard

n. hard paper substance used for boxes

Cardboard is a generic non-specific term for a heavy duty paper based product.
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Noun
1. a stiff moderately thick paper
(synonym) composition board
(hypernym) paper
(hyponym) binder's board, binder board
Adjective
1. resembling cardboard especially in flimsiness; "apartments with cardboard walls"
(synonym) flimsy
(similar) inferior
2. without substance; "cardboard caricatures of historical figures"
(synonym) unlifelike
(similar) artificial, unreal

(n.)
A stiff compact pasteboard of various qualities, for making cards, etc., often having a polished surface.
  

cardboard /'kɑ:dbɔ:d/
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