North Atlantic Treaty Organization vs Hellenic Republic

North Atlantic Treaty Organization and Hellenic Republic both are nouns.

Word	Noun	Adjective	Verb	Adverb
North Atlantic Treaty Organization	Yes	No	No	No
Hellenic Republic	Yes	No	No	No

North Atlantic Treaty Organization (noun)	Hellenic Republic (noun)
an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security	a republic in southeastern Europe on the southern part of the Balkan peninsula; known for grapes and olives and olive oil