Synonyms for Gas (same or very similar meaning)
WordNet sense 1 (a fossil fuel in the gaseous state; used for cooking and heating homes):
natural gas
WordNet sense 2 (a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines):
gasoline, petrol, gasolene
WordNet sense 3 (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):
gaseous state
WordNet sense 4 (a state of excessive gas in the alimentary canal):
flatulence, flatulency
WordNet sense 5 (a pedal that controls the throttle valve):
accelerator, gun, throttle, accelerator pedal, gas pedal
WordNet sense 6 (show off):
blow, bluster, boast, brag, gasconade, swash, tout, vaunt, shoot a line
From the ODE community, based on WordNet
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