USA vs February 12

USA and February 12 both are nouns.

Word	Noun	Adjective	Verb	Adverb
USA	Yes	No	No	No
February 12	Yes	No	No	No

USA (noun)	February 12 (noun)
the army of the United States of America; the agency that organizes and trains soldiers for land warfare	the day on which President Abraham Lincoln is remembered
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