river vs Euphrates

river and Euphrates both are nouns.

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

river (noun)	Euphrates (noun)
a large natural stream of water (larger than a creek)	a river in southwestern Asia; flows into the Persian Gulf; was important in the development of several great civilizations in ancient Mesopotamia