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
Raven Brunner, People.com, 14 July 2025
Lake Station Fire Chief Chuck Fazekas said the fire was triggered when the library’s boiler came on about 6:30 a.m., igniting nearby cardboard boxes and plastic buckets.
—Carole Carlson, Chicago Tribune, 14 July 2025
Jonel Aleccia, Chicago Tribune, 18 Mar. 2025
Takeout containers are cardboard rather than plastic.
—Christopher Elliott, Forbes, 23 Mar. 2025
See All Example Sentences for cardboard
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Noun
And lastly, the thick slice mushrooms come in a 10lb cardboard box labeled with Peeters Mushroom Farm.
—Raven Brunner, People.com, 14 July 2025
Lake Station Fire Chief Chuck Fazekas said the fire was triggered when the library’s boiler came on about 6:30 a.m., igniting nearby cardboard boxes and plastic buckets.
—Carole Carlson, Chicago Tribune, 14 July 2025
Adjective
The boxes are cardboard and contain individual plastic packages of products.
—Jonel Aleccia, Chicago Tribune, 18 Mar. 2025
Takeout containers are cardboard rather than plastic.
—Christopher Elliott, Forbes, 23 Mar. 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 21 Jul. 2025.
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