camper vs motor home

camper and motor home both are nouns.

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

As nouns, camper and motor home are synonyms defined as:

camper and motor home: a recreational vehicle equipped for camping out while traveling

Other synonyms of camper include camping bus.

camper (noun)	motor home (noun)
a recreational vehicle equipped for camping out while traveling	a recreational vehicle equipped for camping out while traveling
someone living temporarily in a tent or lodge for recreation