Dakota vs U.S.

Dakota and U.S. both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dakota	Yes	No	No	No
U.S.	Yes	No	No	No

Dakota (noun)	U.S. (noun)
the Siouan language spoken by the Dakota	the executive and legislative and judicial branches of the federal government of the United States
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