AI vs USA

AI and USA both are nouns.

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

AI (noun)	USA (noun)
the introduction of semen into the oviduct or uterus by some means other than sexual intercourse	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
the branch of computer science that deal with writing computer programs that can solve problems creatively	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
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