Siouan vs Biloxi

Siouan and Biloxi both are nouns.

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

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

As nouns, Biloxi is a hyponym of Siouan; that is, Biloxi 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
Biloxi: a member of the Siouan people of southeastern Mississippi

Siouan (noun)	Biloxi (noun)
a family of North American Indian languages spoken by the Sioux	the Siouan language spoken by the Biloxi
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	an old town in southern Mississippi on the Gulf of Mexico
	a member of the Siouan people of southeastern Mississippi

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