Commonwealth of Dominica vs OAS

Commonwealth of Dominica and OAS both are nouns.

Word	Noun	Adjective	Verb	Adverb
Commonwealth of Dominica	Yes	No	No	No
OAS	Yes	No	No	No

Commonwealth of Dominica (noun)	OAS (noun)
a country on the island of Dominica	an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation