island vs Samoa

island and Samoa both are nouns.

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

island (noun)	Samoa (noun)
a zone or area resembling an island	a constitutional monarchy on the western part of the islands of Samoa in the South Pacific
a land mass (smaller than a continent) that is surrounded by water	a group of volcanic islands in the South Pacific midway between Hawaii and Australia; its climate and scenery and Polynesian culture make it a popular tourist stop