Aare vs Aare River

Aare and Aare River both are nouns.

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

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

Aare and Aare River: a river in north central Switzerland that runs northeast into the Rhine

Other synonyms of Aare include Aar.

Aare (noun)	Aare River (noun)
a river in north central Switzerland that runs northeast into the Rhine	a river in north central Switzerland that runs northeast into the Rhine