Ganges River vs Ganges

Ganges River and Ganges both are nouns.

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

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

Ganges River and Ganges: an Asian river; rises in the Himalayas and flows east into the Bay of Bengal; a sacred river of the Hindus

Ganges River (noun)	Ganges (noun)
an Asian river; rises in the Himalayas and flows east into the Bay of Bengal; a sacred river of the Hindus	an Asian river; rises in the Himalayas and flows east into the Bay of Bengal; a sacred river of the Hindus