island vs Nevis

island and Nevis both are nouns.

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

island (noun)	Nevis (noun)
a zone or area resembling an island	one of the islands of Saint Christopher-Nevis, with capital Charlestown
a land mass (smaller than a continent) that is surrounded by water