Spitzbergen vs island

Spitzbergen and island both are nouns.

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

Spitzbergen (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