van vs motor home

van and motor home both are nouns.

Word	Noun	Adjective	Verb	Adverb
van	Yes	No	No	No
motor home	Yes	No	No	No

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

Other hypernyms of van include camper, camping bus.

van (noun)	motor home (noun)
a truck with an enclosed cargo space	a recreational vehicle equipped for camping out while traveling
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)