island vs Acores

island and Acores both are nouns.

Word	Noun	Adjective	Verb	Adverb
island	Yes	No	No	No
Acores	Yes	No	No	No

island (noun)	Acores (noun)
a zone or area resembling an island	islands in the Atlantic Ocean belonging to Portugal
a land mass (smaller than a continent) that is surrounded by water