river vs Yenisey

river and Yenisey both are nouns.

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

river (noun)	Yenisey (noun)
a large natural stream of water (larger than a creek)	a Russian river in Siberia; rises in mountains near the Mongolian border and flows generally northward into the Kara Sea