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Definition of cardboard
cardboard
/ˈkɑːrd.bɔːrd/
card · board
Plural:cardboards
cardboard Lexical Profile
CEFR
B1
Grade
3
Tier
1
Usage
Top 5k
cardboard Game Scores & Validity
Scrabble US
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WWF
Wordle Guess
• noun
1
A stiff, thick, and heavy type of paper or paperboard, typically used for making boxes, signs, and packaging.
Example
"We spent the afternoon breaking down empty cardboard boxes after unpacking all our kitchen supplies."
Synonyms
View all synonyms for cardboard• Rhymes for cardboard
Word Origin & Etymology
Originated in the late 17th century as a compound of 'card' (thick paper) and 'board' (a flat piece of material), initially referring to the stiff material used to make playing cards and later adapted for general packaging.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Cardboard. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/cardboard