Michigan vs USA

Michigan and USA both are nouns.

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

Michigan (noun)	USA (noun)
a gambling card game in which chips are placed on the ace and king and queen and jack of separate suits (taken from a separate deck); a player plays the lowest card of a suit in his hand and successively higher cards are played until the sequence stops; the player who plays a card matching one in the layout wins all the chips on that card	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
a midwestern state in north central United States in the Great Lakes region, with capital Lansing	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 3rd largest of the Great Lakes; the largest freshwater lake entirely within the United States borders