posterboard
/ˈpoʊstərˌbɔrd/
noun
- A thick, stiff type of paper or cardboard used for making signs, displays, or art projects.
- She bought a large sheet of white posterboard for her science fair project.
- The students used colorful posterboard to create their campaign posters.
- He cut the posterboard into a rectangle and wrote the announcement in big letters.
Synonyms