easy
Plants help add oxygen to the air.
What does Oxygen mean?
Oxygen is a gas needed for breathing.
Dictionary definition
A gas in the air that people, animals, and many living things need to breathe.
Example sentences
Oxygen in a sentence
medium
People need oxygen to breathe.
hard
The science article explained how oxygen moves through the body and helps cells work.
Writing practice
Ready to write your own? Study the examples, then practice oxygen in a sentence with Sentence Builder checklist feedback.
Quick practice
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Practice the meaning of Oxygen
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does oxygen mean?
The correct sentence uses oxygen in context.
Practice 2
Which word is closest in meaning to oxygen?
Air Gas is close in meaning to oxygen.
Practice 3
Which sentence uses oxygen correctly?
The correct sentence uses oxygen in context.
Practice complete
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You completed 3 questions.
Pronunciation coach
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Oxygen
Voice settings
Sounds like
ok · si · jen · strongest beat: ok
Tap each sound part, then blend the whole word together.
Learn
WordOxygen.
Partnoun.
MeaningOxygen is a gas needed for breathing.
ExampleExample: Plants help add oxygen to the air.
Word breakdown
3 syllables. Say each part, then blend the word.
- Syllables
- ok · si · jen
- Strongest beat
- ok
- Ending
- jen
- Tip
- Put a little extra energy on ok.
Your turn
Say Oxygen
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Nice work—you practiced oxygen.
Synonyms
Words like Oxygen
air gasUse as a simple phrase for a gas found in air.
breathing gasUse when focusing on oxygen's role in breathing.
Antonyms
Opposite words
carbon dioxideUse for a different gas often compared with oxygen.
vacuumUse for a space with little or no matter, including air.
Synonym practice
Word family
Oxygen word family
Base word
oxygen
verb
oxygenate
To add oxygen to something.
adjective
oxygenated
Containing added oxygen.
Related words
Explore related words
Student support
Understand Oxygen
Hint for students
Oxygen is a gas needed for breathing.
Common mix-up
Oxygen is not the same as carbon dioxide. Oxygen means oxygen is a gas needed for breathing.
Try it in class or at home
Read this model sentence: People need oxygen to breathe. Clue words: people, need, breathe. Underline clue words that show why oxygen fits instead of carbon dioxide. Now write one new sentence that shows oxygen without using the word oxygen. Ask: Does my sentence clearly show oxygen?
Teacher prompt
Ask students to explain this model sentence: "People need oxygen to breathe." Why does oxygen fit better than carbon dioxide?
Learning activities
Practice Oxygen and explore more word games
Cards labelled “Practice OXYGEN” keep this word in focus. Explore cards open games with other words.
Practice OXYGEN
Sentence Builder
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