Isere River vs Isere

Isere River and Isere both are nouns.

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

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

Isere River and Isere: a river in southeastern France; a tributary of the Rhone

Isere River (noun)	Isere (noun)
a river in southeastern France; a tributary of the Rhone	a river in southeastern France; a tributary of the Rhone