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.

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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

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

From The Wall Street Journal ● Apr. 22, 2026

They simply plugged in the numbers they could easily find, fudged the rest and threw it on a poster board.

From Salon ● Apr. 5, 2026

We cut out pictures, did the poster board and everything.

From Los Angeles Times ● Feb. 7, 2025

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

Four large squares of poster board, covered with scores of photos documenting the whole brief span of Chris's life, have occupied the dining-room table for many days now.

From "Into the Wild" by Jon Krakauer