Posterboard

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Cardboard material suitable for making posters. uncountable

    "I used a piece of posterboard for my project."

  2. 2
    a cardboard suitable for making posters wordnet
  3. 3
    A piece of such material. countable, uncountable

    "I used the posterboard for my project."

  4. 4
    A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat. countable, direct, uncountable

    "They sent me a nice posterboard on the new product."

Synonyms

All synonyms
paperboardpaperboardposter board

Example

More examples

"I used a piece of posterboard for my project."

Etymology

From poster + board.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.