card·board
ˈkärd-ˌbȯrd 
: a material made from cellulose fiber (such as wood pulp) like paper but usually thicker
1
: made of or as if of cardboard
2
: unreal, stereotyped
a play with cardboard characters
Examples of cardboard in a Sentence
Noun
Cover the windows with cardboard.
Adjective
The play had cardboard characters.
Recent Examples on the Web
Lauren Landers, Better Homes & Gardens, 12 Nov. 2025
Earlier Monday, four students were arrested and cited with felony vandalism while attempting to hang a large insect made out of cardboard on Sather Gate.
—Sacbee.com, 11 Nov. 2025
Alexander Puutio, Forbes.com, 29 Aug. 2025
Polos, walking home from the theatre late at night, still wearing his makeup, ashes in a cardboard urn in his backpack.
—Anne Carson, New Yorker, 21 Aug. 2025
See All Example Sentences for cardboard
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Noun
For an even easier option, layer autumn leaves, twigs, and compost on top of cardboard and build soil for a new garden using the lasagna gardening technique.
—Lauren Landers, Better Homes & Gardens, 12 Nov. 2025
Earlier Monday, four students were arrested and cited with felony vandalism while attempting to hang a large insect made out of cardboard on Sather Gate.
—Sacbee.com, 11 Nov. 2025
Adjective
The packaging may still arrive in a box, but the business inside has moved far beyond the cardboard era.
—Alexander Puutio, Forbes.com, 29 Aug. 2025
Polos, walking home from the theatre late at night, still wearing his makeup, ashes in a cardboard urn in his backpack.
—Anne Carson, New Yorker, 21 Aug. 2025
See All Example Sentences for cardboard
Cite this Entry
“Cardboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardboard. Accessed 23 Nov. 2025.
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