gasoline tax vs excise

gasoline tax and excise both are nouns.

Word	Noun	Adjective	Verb	Adverb
gasoline tax	Yes	No	No	No
excise	Yes	No	Yes	No

As nouns, excise is a hypernym of gasoline tax; that is, excise is a word with a broader meaning than gasoline tax:

gasoline tax: a tax on every gallon of gasoline sold
excise: a tax that is measured by the amount of business done (not on property or income from real estate)

Other hypernyms of gasoline tax include excise tax.

gasoline tax (noun)	excise (noun)
a tax on every gallon of gasoline sold	a tax that is measured by the amount of business done (not on property or income from real estate)

gasoline tax (verb)	excise (verb)
	remove by cutting
	remove by erasing or crossing out or as if by drawing a line
	levy an excise tax on