February 22 vs USA

February 22 and USA both are nouns.

Word	Noun	Adjective	Verb	Adverb
February 22	Yes	No	No	No
USA	Yes	No	No	No

February 22 (noun)	USA (noun)
the day on which George Washington is remembered	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
	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