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We need to get some gas before we leave town.
regulations to cut the emissions of gases such as carbon dioxide
They detected high levels of radon gas in the building.
a gas stove/heater/boiler
She couldn't pay her gas bill.
Can you smell gas?
Police used gas to disperse the crowd.
A nerve gas attack left hundreds injured.
This is the American English definition of gas. View British English definition of gas.