poster board

or poster·board

noun

1. a thick, fairly stiff cardboard composed of layers of paper or paper pulp compressed together and typically used to support displays.

adjective

1. of, relating to, or made of poster board.

Word History and Origins

Origin of poster board¹

First recorded in 1900–05

Example Sentences

In the gymnasium at Gregory Heights, third graders rode bikes from one end to the other, stopping whenever Niculita held up stop signs or a large poster board with a black car on it.

From Seattle Times

Paintings of Floyd and poems about him written on poster boards stand on easels throughout the exhibit.

From Seattle Times

Frequently spotted on sidelines these days is a large sheet, tarp or poster board used to shield signs from ending up on scouting film.

From Washington Times

MATAMOROS, Mexico — At a massive encampment near an international bridge along the U.S.-Mexico border, migrants from Honduras, Haiti, Venezuela and elsewhere have turned scraps of plastic, poster board and rope into makeshift homes.

From Washington Times

Outside the gym, a large pink poster board advertised a designated missing persons tent where Maui residents can add the list of the missing - estimated to be up to 1,000.

From BBC