U.S.A. vs honker

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

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

U.S.A. (noun)	honker (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	common greyish-brown wild goose of North America with a loud, trumpeting call
	informal terms for the nose
	a driver who causes his car's horn to make a loud honking sound