luggage compartment vs car

luggage compartment and car both are nouns.

Word	Noun	Adjective	Verb	Adverb
luggage compartment	Yes	No	No	No
car	Yes	No	No	No

luggage compartment (noun)	car (noun)
compartment in an automobile that carries luggage or shopping or tools	a motor vehicle with four wheels; usually propelled by an internal combustion engine
	a wheeled vehicle adapted to the rails of railroad
	where passengers ride up and down
	the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
	a conveyance for passengers or freight on a cable railway