camper vs van

camper and van both are nouns.

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

As nouns, van is a hyponym of camper; that is, van is a word with a more specific, narrower meaning than camper:

Other hyponyms of camper include caravan.

camper (noun)	van (noun)
a recreational vehicle equipped for camping out while traveling	a truck with an enclosed cargo space
someone living temporarily in a tent or lodge for recreation	a camper equipped with living quarters
	(Great Britain) a closed railroad car that carries baggage or freight
	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)