camper vs vacationer

camper and vacationer both are nouns.

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

As nouns, vacationer is a hypernym of camper; that is, vacationer is a word with a broader meaning than camper:

camper: someone living temporarily in a tent or lodge for recreation
vacationer: someone on vacation; someone who is devoting time to pleasure or relaxation rather than to work

Other hypernyms of camper include vacationist.

camper (noun)	vacationer (noun)
a recreational vehicle equipped for camping out while traveling	someone on vacation; someone who is devoting time to pleasure or relaxation rather than to work
someone living temporarily in a tent or lodge for recreation