cardboard
card‧board1 /ˈkɑːdbɔːd $ ˈkɑːrdbɔːrd/ 
noun [uncountable]
stiff thick brown paper, used especially for making boxes:
a sheet of cardboard
cardboard2 adjective
1. made from cardboard:
a cardboard box
2. [only before noun] seeming silly and not real:
a romantic novel full of cardboard characters
| I |
noun [uncountable]stiff thick brown paper, used especially for making boxes:
| II |
adjective1. made from cardboard:
2. [only before noun] seeming silly and not real: