North Atlantic Treaty Organization vs US

North Atlantic Treaty Organization and US both are nouns.

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

North Atlantic Treaty Organization (noun)	US (noun)
an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security	North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776