OAS vs Saint Lucia

OAS and Saint Lucia both are nouns.

Word	Noun	Adjective	Verb	Adverb
OAS	Yes	No	No	No
Saint Lucia	Yes	No	No	No

OAS (noun)	Saint Lucia (noun)
an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation	a country on the island of Saint Lucia; gained independence from Great Britain in 1979
	a volcanic island in the Windward Isles to the south of Martinique