Seychelles islands vs island

Seychelles islands and island both are nouns.

Word	Noun	Adjective	Verb	Adverb
Seychelles islands	Yes	No	No	No
island	Yes	No	No	No

Seychelles islands (noun)	island (noun)
a group of about 90 islands in the western Indian Ocean to the north of Madagascar	a zone or area resembling an island
	a land mass (smaller than a continent) that is surrounded by water