station wagon vs wagon

station wagon and wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
station wagon	Yes	No	No	No
wagon	Yes	No	No	No

As nouns, station wagon and wagon are synonyms defined as:

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

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

station wagon (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