easy
The toy came in a cardboard box.
What does Cardboard mean?
Cardboard is thick stiff paper.
Dictionary definition
thick, stiff paper used to make boxes, signs, crafts, and packaging.
Example sentences
Cardboard in a sentence
medium
We used cardboard to build a small model house.
hard
The package used recycled cardboard to protect the item during shipping.
Writing practice
Ready to write your own? Study the examples, then practice cardboard in a sentence with Sentence Builder checklist feedback.
Quick practice
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Practice the meaning of Cardboard
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does cardboard mean?
Cardboard is thick stiff paper often used for boxes.
Practice 2
Which word is related to cardboard?
Many boxes are made from cardboard.
Practice 3
Which sentence uses cardboard correctly?
Cardboard is often used to make boxes for packing things.
Practice complete
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You completed 3 questions.
Pronunciation coach
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Cardboard
Voice settings
Sounds like
kard · bord · strongest beat: kard
Tap each sound part, then blend the whole word together.
Learn
WordCardboard.
Partnoun, adjective.
MeaningCardboard is thick stiff paper.
ExampleExample: The toy came in a cardboard box.
Word breakdown
2 syllables. Say each part, then blend the word.
- Syllables
- kard · bord
- Strongest beat
- kard
- Ending
- bord
- Tip
- Put a little extra energy on kard.
Your turn
Say Cardboard
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Nice work—you practiced cardboard.
Synonyms
Words like Cardboard
stiff paperA simple phrase for cardboard.
paperboardA type of thick paper material.
Antonyms
Opposite words
thin paperPaper that is not thick or stiff like cardboard.
metalA hard material different from cardboard.
Synonym practice
Want to practice cardboard synonyms in context? Try a Synonym Search question like "The cardboard box held the art supplies," then compare close word choices. Practice cardboard synonyms.
Word family
Cardboard word family
Base word
cardboard
noun
cardboard
Thick stiff paper material.
noun
cardboards
Different kinds or pieces of cardboard.
Related words
Explore related words
Student support
Understand Cardboard
Hint for students
Cardboard is thick stiff paper.
Common mix-up
Cardboard is not the same as thin paper. Cardboard means cardboard is thick stiff paper.
Try it in class or at home
Read this model sentence: We used cardboard to build a small model house. Clue words: used, build, small. Underline clue words that show why cardboard fits instead of thin paper. Now write one new sentence that shows cardboard without using the word cardboard. Ask: Does my sentence clearly show cardboard?
Teacher prompt
Ask students to explain this model sentence: "We used cardboard to build a small model house." Why does cardboard fit better than thin paper?
Learning activities
Practice Cardboard and explore more word games
Cards labelled “Practice CARDBOARD” keep this word in focus. Explore cards open games with other words.
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Sentence Builder
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Vocabulary Match
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Context Clue Challenge
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Practice CARDBOARD
Synonym Search
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