: a very dense fiberboard usually having one smooth face

Examples of hardboard in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Pioneer Pro Inflatable Hardboard by Isle: An inflatable SUP that feels like a hardboard Learn More Inflatable stand-up paddleboards (SUP) typically sacrifice sturdiness for exceptional portability. Popular Science, 29 Nov. 2023 Wood paneling is made of plywood or hardboard. Joseph Truini, Popular Mechanics, 18 Dec. 2020

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of hardboard was in 1922

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Cite this Entry

“Hardboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hardboard. Accessed 24 Mar. 2025.

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