Tenerife vs island

Tenerife and island both are nouns.

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

Tenerife (noun)	island (noun)
a Spanish island in the Atlantic off the northwestern coast of Africa; the largest of the Canary Islands	a zone or area resembling an island
	a land mass (smaller than a continent) that is surrounded by water