gas

A fossil fuel in the gaseous state; used for cooking and heating homes.

A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines.

A state of excessive gas in the alimentary canal.

The state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container.

A pedal that controls the throttle valve.

“he stepped on the gas”

A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely.

Show off.

Attack with gas; subject to gas fumes.

“The despot gassed the rebellious tribes”