Rhone River vs Rhone

Rhone River and Rhone both are nouns.

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

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

Rhone River and Rhone: a major French river; flows into the Mediterranean near Marseilles

Rhone River (noun)	Rhone (noun)
a major French river; flows into the Mediterranean near Marseilles	a major French river; flows into the Mediterranean near Marseilles