US vs Saint Lawrence River

US and Saint Lawrence River both are nouns.

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

US (noun)	Saint Lawrence River (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	a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic