The Caribbean Island are also known as the West Indies. This occurred when Columbus explored the area. He had believed he was exploring the East Indies. When he found this was not the case he called the islands the West Indies.
Maluku Island, Zanzibar region
That used to be Cuba.
rumbla
cuba
Grenada
Cuba .
St. Lucia
Depending on where you live: In the US, many people just call the West Indies, "The Caribbean" meaning one of many island vacation spots.
Ireland is known as the Emerald Isle. It is a beautiful and very green country. Montserrat, an island in the Caribbean, is also referred to as the Emerald Isle.
They are all nouns, Caribbean being a form of "Caribbean Sea" or "Caribbean region." But Caribbean can also function as a proper adjective (Caribbean tribes, Caribbean music).*The word island is usually considered a noun adjunct (attributive noun) when used with another noun, e.g. island paradise, island map. This also applies to location in location scouting and reunion in reunion committee.
Cuba, which is a Caribbean island.
The Coche Island is located in the Caribbean and is one of the three islands which forms the Nueva Esparta State of Venezuela. It is also known as Isla de Coche.