ADJ. pure | liquid | atmospheric
VERB + OXYGEN carry, contain the blood which carries oxygen to the brain | absorb, breathe, consume, take in, use up | generate, produce, release After dark the plants stop producing oxygen. | administer, give sb | get, receive The patient didn't seem to be getting enough oxygen. | deprive sb/sth of, starve sb/sth of There was a risk the brain might be starved of oxygen.
OXYGEN + NOUN atom | level, supply | mask
PHRASES a lack of oxygen, a supply of oxygen