estate car vs wagon

estate car and wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
estate car	Yes	No	No	No
wagon	Yes	No	No	No

As nouns, estate car and wagon are synonyms defined as:

estate car and wagon: a car that has a long body and rear door with space behind rear seat

Other synonyms of estate car include beach waggon, beach wagon, station waggon, station wagon, waggon.

estate car (noun)	wagon (noun)
a car that has a long body and rear door with space behind rear seat	any of various kinds of wheeled vehicles drawn by an animal or a tractor
	a car that has a long body and rear door with space behind rear seat
	van used by police to transport prisoners
	a child's four-wheeled toy cart sometimes used for coasting