Madeira vs island

Madeira and island both are nouns.

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

Madeira (noun)	island (noun)
an amber dessert wine from the Madeira Islands	a zone or area resembling an island
an island in the Atlantic Ocean off the coast of Africa; the largest of the Madeira Islands	a land mass (smaller than a continent) that is surrounded by water
a 3380 km long Brazilian river; tributary of the Amazon River