river vs Ganges

river and Ganges both are nouns.

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

river (noun)	Ganges (noun)
a large natural stream of water (larger than a creek)	an Asian river; rises in the Himalayas and flows east into the Bay of Bengal; a sacred river of the Hindus