U.S. vs multiple voting

U.S. and multiple voting both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S.	Yes	No	No	No
multiple voting	Yes	No	No	No

U.S. (noun)	multiple voting (noun)
the executive and legislative and judicial branches of the federal government of the United States	the act of voting in more than one place by the same person at the same election (illegal in U.S.)
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