Spitsbergen vs island

Spitsbergen and island both are nouns.

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

Spitsbergen (noun)	island (noun)
islands in the Svalbard archipelago to the east of northern Greenland; belonging to Norway	a zone or area resembling an island
	a land mass (smaller than a continent) that is surrounded by water