Crow vs Siouan

Crow and Siouan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Crow	Yes	No	No	No
Siouan	Yes	Yes	No	No

As nouns, Siouan is a hypernym of Crow; that is, Siouan is a word with a broader meaning than Crow:

Other hypernyms of Crow include Siouan language.

As nouns, Siouan is a hypernym of Crow; that is, Siouan is a word with a broader meaning than Crow:

Crow: a member of the Siouan people formerly living in eastern Montana
Siouan: a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains

Other hypernyms of Crow include Sioux.

Crow (noun)	Siouan (noun)
a Siouan language spoken by the Crow	a family of North American Indian languages spoken by the Sioux
a small quadrilateral constellation in the Southern Hemisphere near Virgo	a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains
a member of the Siouan people formerly living in eastern Montana

Crow (adjective)	Siouan (adjective)
	of or relating to the Sioux people or their language and culture