Dakota vs USA

Dakota and USA both are nouns.

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

Dakota (noun)	USA (noun)
the Siouan language spoken by the Dakota	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
the area of the states of North Dakota and South Dakota	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
a member of the Siouan people of the northern Mississippi valley; commonly called the Sioux