A mixture of propane and butane with traces of some other gases, which is kept in a liquid state at high pressure in metal bottles, and used as a source of gas for cooking, heating and as a fuel in internal combustion engines in vehicles.
the compressed gas in a pressurised container (especially an aerosol can) that is used to expel its content
the explosive (cordite, gunpowder, etc) found in ammunition cartridges
fuel, oxidizer, reaction mass or mixture for one or more engines (especially internal combustion engines or jet engines) that is carried within a vehicle prior to use