gasoline vs napalm

gasoline and napalm both are nouns.

Word	Noun	Adjective	Verb	Adverb
gasoline	Yes	No	No	No
napalm	Yes	No	No	No

As nouns, napalm is a hyponym of gasoline; that is, napalm is a word with a more specific, narrower meaning than gasoline:

gasoline: a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
napalm: gasoline jelled with aluminum soaps; highly incendiary liquid used in fire bombs and flamethrowers

Other hyponyms of gasoline include leaded gasoline, leaded petrol, unleaded gasoline, unleaded petrol.

gasoline (noun)	napalm (noun)
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 jelled with aluminum soaps; highly incendiary liquid used in fire bombs and flamethrowers