Caribbean vs St. Vincent and the Grenadines

Caribbean and St. Vincent and the Grenadines both are nouns.

Word	Noun	Adjective	Verb	Adverb
Caribbean	Yes	No	No	No
St. Vincent and the Grenadines	Yes	No	No	No

Caribbean (noun)	St. Vincent and the Grenadines (noun)
region including the Caribbean Islands	an island country in the central Windward Islands; achieved independence from the United Kingdom in 1979
an arm of the Atlantic Ocean between North and South America; the origin of the Gulf stream