Shenandoah River vs Old Dominion State

Shenandoah River and Old Dominion State both are nouns.

Word	Noun	Adjective	Verb	Adverb
Shenandoah River	Yes	No	No	No
Old Dominion State	Yes	No	No	No

Shenandoah River (noun)	Old Dominion State (noun)
a river of northern Virginia that empties into the Potomac at Harpers Ferry	a state in the eastern United States; one of the original 13 colonies; one of the Confederate States in the American Civil War