island vs Bahrain Island

island and Bahrain Island both are nouns.

Word	Noun	Adjective	Verb	Adverb
island	Yes	No	No	No
Bahrain Island	Yes	No	No	No

island (noun)	Bahrain Island (noun)
a zone or area resembling an island	an island in the Persian Gulf
a land mass (smaller than a continent) that is surrounded by water