poster board

American  

Or posterboard

noun

• poster boards
  plural

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.

Other Word Forms

Noun Inflected Forms

• poster boards
  plural

Etymology

Origin of poster board

First recorded in 1900–05

Example Sentences

See Examples For:

poster board

A staffer hoisted a poster board showing purported texts alongside images of Smith, Willis and Wade and a photo of State Farm Arena, then yanked it back down with remarkable speed.

From Salon ● Oct. 1, 2026

One quote from the book hangs on a poster board in my classroom: “A community’s first responsibility is to protect its children — the ones we have now and the ones we will have.”

From Los Angeles Times ● Jul. 1, 2026

For five decades, the Ecuadorian siblings have created signs for stores using poster board and markers.

From The Wall Street Journal ● Apr. 22, 2026

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 ● Aug. 13, 2023

We’ll make a sandwich board for me to wear—one poster board in front, one in back—with straps to hang them from my shoulders.

From "Muffled" by Jennifer Gennari