island vs Falkland Islands

island and Falkland Islands both are nouns.

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

island (noun)	Falkland Islands (noun)
a zone or area resembling an island	a group of over 100 islands in the southern Atlantic off the coast of Argentina; a British Crown Colony
a land mass (smaller than a continent) that is surrounded by water