United Kingdom of Great Britain and Northern Ireland vs NATO

United Kingdom of Great Britain and Northern Ireland and NATO both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
NATO	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	NATO (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security