island vs New Zealand

island and New Zealand both are nouns.

Word	Noun	Adjective	Verb	Adverb
island	Yes	No	No	No
New Zealand	Yes	No	No	No

island (noun)	New Zealand (noun)
a zone or area resembling an island	an independent country within the British Commonwealth; achieved independence from the United Kingdom in 1907; known for sheep and spectacular scenery
a land mass (smaller than a continent) that is surrounded by water	North Island and South Island and adjacent small islands in the South Pacific