USA vs Saint Lawrence River

USA and Saint Lawrence River both are nouns.

Word	Noun	Adjective	Verb	Adverb
USA	Yes	No	No	No
Saint Lawrence River	Yes	No	No	No

USA (noun)	Saint Lawrence River (noun)
the army of the United States of America; the agency that organizes and trains soldiers for land warfare	a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic
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