United States vs St. Lawrence River

United States and St. Lawrence River both are nouns.

Word	Noun	Adjective	Verb	Adverb
United States	Yes	No	No	No
St. Lawrence River	Yes	No	No	No

United States (noun)	St. Lawrence River (noun)
the executive and legislative and judicial branches of the federal government of the United States	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