station wagon vs beach wagon

station wagon and beach wagon both are nouns.

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

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

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

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

station wagon (noun)	beach wagon (noun)
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