island vs Visayan Islands

island and Visayan Islands both are nouns.

Word	Noun	Adjective	Verb	Adverb
island	Yes	No	No	No
Visayan Islands	Yes	No	No	No

island (noun)	Visayan Islands (noun)
a zone or area resembling an island	group of islands in the central Philippines
a land mass (smaller than a continent) that is surrounded by water