summercaters vs vacationer

summercaters and vacationer both are nouns.

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

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

summercaters: (Maine colloquial) temporary summer residents of coastal Maine
vacationer: someone on vacation; someone who is devoting time to pleasure or relaxation rather than to work

Other hypernyms of summercaters include vacationist.

summercaters (noun)	vacationer (noun)
(Maine colloquial) temporary summer residents of coastal Maine	someone on vacation; someone who is devoting time to pleasure or relaxation rather than to work