gasohol vs hydrocarbon

gasohol and hydrocarbon both are nouns.

Word	Noun	Adjective	Verb	Adverb
gasohol	Yes	No	No	No
hydrocarbon	Yes	No	No	No

As nouns, hydrocarbon is a hypernym of gasohol; that is, hydrocarbon is a word with a broader meaning than gasohol:

gasohol: a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn
hydrocarbon: an organic compound containing only carbon and hydrogen

Other hypernyms of gasohol include fuel.

gasohol (noun)	hydrocarbon (noun)
a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn	an organic compound containing only carbon and hydrogen