Kingdom of Spain vs North Atlantic Treaty Organization

Kingdom of Spain and North Atlantic Treaty Organization both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kingdom of Spain	Yes	No	No	No
North Atlantic Treaty Organization	Yes	No	No	No

Kingdom of Spain (noun)	North Atlantic Treaty Organization (noun)
a parliamentary monarchy in southwestern Europe on the Iberian Peninsula; a former colonial power	an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security