gas Noun Matter in a state intermediate between liquid and plasma that can be contained only if it is fully surrounded by a solid (or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly.
gas Noun A chemical element or compound in such a state.
gas Noun A flammable gaseous hydrocarbon or hydrocarbon mixture (typically predominantly methane) used as a fuel, e.g. for cooking, heating, electricity generation or as a fuel in internal combustion engines in vehicles.
gas Noun A hob on a gas cooker.
gas Noun Methane or other waste gases trapped in one's belly as a result of the digestive process.
gas Noun A humorous or entertaining event or person.
gas Noun A fastball.
gas Verb To kill with poisonous gas.
gas Verb To talk, chat.
gas Verb To emit gas.
gas Noun Gasoline; a derivative of petroleum used as fuel.
gas Verb To give a vehicle more fuel in order to accelerate it.
gas Verb To fill (a vehicle's fuel tank) with fuel