U.S.A. vs trapezoid

U.S.A. and trapezoid both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S.A.	Yes	No	No	No
trapezoid	Yes	No	No	No

U.S.A. (noun)	trapezoid (noun)
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 wrist bone between the trapezium and the capitate bones
	a quadrilateral with two parallel sides