USA vs AI

USA and AI both are nouns.

Word	Noun	Adjective	Verb	Adverb
USA	Yes	No	No	No
AI	Yes	No	No	No

USA (noun)	AI (noun)
the army of the United States of America; the agency that organizes and trains soldiers for land warfare	the introduction of semen into the oviduct or uterus by some means other than sexual intercourse
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	the branch of computer science that deal with writing computer programs that can solve problems creatively
	an agency of the United States Army responsible for providing timely and relevant and accurate and synchronized intelligence to tactical and operational and strategic level commanders