electric vs electric automobile

electric and electric automobile both are nouns.

Word	Noun	Adjective	Verb	Adverb
electric	Yes	Yes	No	No
electric automobile	Yes	No	No	No

As nouns, electric and electric automobile are synonyms defined as:

Other synonyms of electric include electric car.

electric (noun)	electric automobile (noun)
a car that is powered by electricity	a car that is powered by electricity

electric (adjective)	electric automobile (adjective)
using or providing or producing or transmitting or operated by electricity
affected by emotion as if by electricity; thrilling
(of a situation) exceptionally tense