river vs Seyhan

river and Seyhan both are nouns.

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

river (noun)	Seyhan (noun)
a large natural stream of water (larger than a creek)	a city in southern Turkey on the Seyhan River
	a Turkish river flowing south southwest into the Mediterranean