Organization of American States vs Panama

Organization of American States and Panama both are nouns.

Word	Noun	Adjective	Verb	Adverb
Organization of American States	Yes	No	No	No
Panama	Yes	No	No	No

Organization of American States (noun)	Panama (noun)
an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation	a stiff hat made of straw with a flat crown
	a republic on the Isthmus of Panama; achieved independence from Colombia in 1903