wagon vs estate car

wagon and estate car both are nouns.

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

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

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

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

wagon (noun)	estate car (noun)
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
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