automobile vs backseat

automobile and backseat both are nouns.

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

automobile (noun)	backseat (noun)
a motor vehicle with four wheels; usually propelled by an internal combustion engine	a seat at the back of a vehicle (especially the seat at the back of an automobile)
	a secondary or inferior position or status

automobile (verb)	backseat (verb)
travel in an automobile