easy
The rock has more mass than the feather.
What does Mass mean?
Mass means amount of matter or a large amount.
Dictionary definition
the amount of matter in something, or a large amount of something.
Example sentences
Mass in a sentence
medium
A mass of clouds moved across the sky.
hard
In science, mass helps describe how much matter an object contains.
Writing practice
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Quick practice
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Practice the meaning of Mass
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does mass mean?
Mass means mass means amount of matter or a large amount.
Practice 2
Which word is closest in meaning to mass?
Amount is close in meaning to mass.
Practice 3
Which word is a helpful opposite or contrast for mass?
Emptiness is a useful contrast for understanding mass.
Practice complete
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Pronunciation coach
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Mass
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MASS
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MASS
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WordMass.
Partnoun.
MeaningMass means amount of matter or a large amount.
ExampleExample: The rock has more mass than the feather.
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Synonyms
Words like Mass
Antonyms
Opposite words
emptinessa lack of matter or contents
small amounta low quantity
Synonym practice
Want to practice mass synonyms in context? Try a Synonym Search question like "The rock had more mass than the sponge," then compare close word choices. Practice mass synonyms.
Word family
Mass word family
Related words
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Student support
Understand Mass
Hint for students
Mass means amount of matter or a large amount.
Common mix-up
Mass is not the same as emptiness. Mass means mass means amount of matter or a large amount.
Try it in class or at home
Read this model sentence: A mass of clouds moved across the sky. Clue words: clouds, moved, across. Underline clue words that show why mass fits instead of emptiness. Now write one new sentence that shows mass without using the word mass. Ask: Does my sentence clearly show mass?
Teacher prompt
Ask students to explain this model sentence: "A mass of clouds moved across the sky." Why does mass fit better than emptiness?
Learning activities
Practice Mass and explore more word games
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Practice MASS
Sentence Builder
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