USA vs honker

USA and honker both are nouns.

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

USA (noun)	honker (noun)
the army of the United States of America; the agency that organizes and trains soldiers for land warfare	common greyish-brown wild goose of North America with a loud, trumpeting call
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	informal terms for the nose
	a driver who causes his car's horn to make a loud honking sound