noun · academic
oxygen
UK/ˈɒk.sɪ.dʒən/US/ˈɑːk.sɪ.dʒən/OX·y·gen
a chemical element (O) essential for respiration and combustion; a gas in the Earth's atmosphere
Examples
“Plants release oxygen during photosynthesis.”
“Oxygen levels in the water affect fish survival.”
“In hospitals, patients with breathing difficulties may receive supplemental oxygen.”
Band 8 sentence
“Monitoring dissolved oxygen levels in rivers is crucial for assessing the ecological impact of wastewater discharge from industrial sites.”
Collocations
- oxygen level
- supplemental oxygen
- oxygen supply
Word family
Common mistakes
We need oxigen to live.→We need oxygen to live.
Plants make air during photosynthesis.→Plants produce oxygen during photosynthesis.
Say it for a higher band
5air→6oxygen→7+oxygen
Synonyms
O2
air (in casual contexts)
Easily confused
air
“Fresh air helps people feel more alert and comfortable.”
Related words
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In -en
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