Delaware River vs First State

Delaware River and First State both are nouns.

Word	Noun	Adjective	Verb	Adverb
Delaware River	Yes	No	No	No
First State	Yes	No	No	No

Delaware River (noun)	First State (noun)
a river that rises in the Catskills in southeastern New York and flows southward along the border of Pennsylvania with New York and New Jersey to northern Delaware where it empties into Delaware Bay	a Mid-Atlantic state; one of the original 13 colonies, with capital Dover