Siouan vs Gros Ventre

Siouan and Gros Ventre both are nouns.

Word	Noun	Adjective	Verb	Adverb
Siouan	Yes	Yes	No	No
Gros Ventre	Yes	No	No	No

As nouns, Gros Ventre is a hyponym of Siouan; that is, Gros Ventre is a word with a more specific, narrower meaning than Siouan:

As nouns, Gros Ventre is a hyponym of Siouan; that is, Gros Ventre is a word with a more specific, narrower meaning than Siouan:

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
Gros Ventre: a member of the Sioux people formerly inhabiting an area along the Missouri river in western North Dakota

Siouan (noun)	Gros Ventre (noun)
a family of North American Indian languages spoken by the Sioux	a Siouan language spoken by the Hidatsa
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 Sioux people formerly inhabiting an area along the Missouri river in western North Dakota

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