Synonyms for gas

noun

1. A state of matter

   vapor, volatile substance, fumes, aeriform fluid, gaseous mixture.

2. *Gasoline

   propellant, petrol (British), motor fuel; see gasoline.

3. Poisonous gas

   Poisonous gases include: vesicant, incendiary gas, Lewisite, mustard gas, chloral gas, chlorine, carbon monoxide, methyl isocyanate, bromide, bromoacetone, phosgene, chloropicrin, Agent Orange, hydrocyanic acid, arsine, stibine, chloracetophenone, brombenzylcyanide, Adamsite, asphyxiating gas, vesicatory gas, moldy hay*.

4. An anesthetic

   ether, general anesthetic, chloroform, nitrous oxide, laughing gas*.

step on the gas*