posterboard

English

Etymology

poster +‎ board

Noun

posterboard (countable and uncountable, plural posterboards)

1. (uncountable) Cardboard material suitable for making posters.

   I used a piece of posterboard for my project.

2. A piece of such material.

   I used the posterboard for my project.

3. (direct marketing) A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat.

   They sent me a nice posterboard on the new product.