Mari vs Russian

Mari and Russian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mari	Yes	No	No	No
Russian	Yes	Yes	No	No

As nouns, Russian is a hypernym of Mari; that is, Russian is a word with a broader meaning than Mari:

Mari (noun)	Russian (noun)
the Finnic language spoken by the Cheremis	the Slavic language that is the official language of Russia
a member of a rural Finnish people living in eastern Russia	a native or inhabitant of Russia

Mari (adjective)	Russian (adjective)
	of or pertaining to or characteristic of Russia or its people or culture or language