North Atlantic Treaty Organization vs ACE

North Atlantic Treaty Organization and ACE both are nouns.

Word	Noun	Adjective	Verb	Adverb
North Atlantic Treaty Organization	Yes	No	No	No
ACE	Yes	No	No	No

North Atlantic Treaty Organization (noun)	ACE (noun)
an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security	a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey
	proteolytic enzyme that converts angiotensin I into angiotensin II