wagon vs van

wagon and van both are nouns.

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

As nouns, van is a hypernym of wagon; that is, van is a word with a broader meaning than wagon:

wagon (noun)	van (noun)
any of various kinds of wheeled vehicles drawn by an animal or a tractor	a truck with an enclosed cargo space
a car that has a long body and rear door with space behind rear seat	a camper equipped with living quarters
van used by police to transport prisoners	(Great Britain) a closed railroad car that carries baggage or freight
a child's four-wheeled toy cart sometimes used for coasting	the leading units moving at the head of an army
	any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts)