river vs Canadian

river and Canadian both are nouns.

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

river (noun)	Canadian (noun)
a large natural stream of water (larger than a creek)	a river rising in northeastern New Mexico and flowing eastward across the Texas panhandle to become a tributary of the Arkansas River in Oklahoma
	a native or inhabitant of Canada

river (adjective)	Canadian (adjective)
	of or relating to Canada or its people