OAS vs Commonwealth of the Bahamas

OAS and Commonwealth of the Bahamas both are nouns.

Word	Noun	Adjective	Verb	Adverb
OAS	Yes	No	No	No
Commonwealth of the Bahamas	Yes	No	No	No

OAS (noun)	Commonwealth of the Bahamas (noun)
an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation	island country in the Atlantic to the east of Florida and Cuba; a popular winter resort