Caribbean vs Jamaica

Caribbean and Jamaica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Caribbean	Yes	No	No	No
Jamaica	Yes	No	No	No

Caribbean (noun)	Jamaica (noun)
region including the Caribbean Islands	a country on the island of Jamaica; became independent of England in 1962; much poverty; the major industry is tourism
an arm of the Atlantic Ocean between North and South America; the origin of the Gulf stream	an island in the West Indies to the south of Cuba and to the west of Haiti