Tyne River vs River Tyne

Tyne River and River Tyne both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tyne River	Yes	No	No	No
River Tyne	Yes	No	No	No

As nouns, Tyne River and River Tyne are synonyms defined as:

Tyne River and River Tyne: a river in northern England that flows east to the North Sea

Other synonyms of Tyne River include Tyne.

Tyne River (noun)	River Tyne (noun)
a river in northern England that flows east to the North Sea	a river in northern England that flows east to the North Sea