siouan

Adjective
  1. Of or relating to the Sioux people or their language and culture (synset 302808837)
Noun
  1. 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 (synset 109688830)
  2. A family of North American Indian languages spoken by the Sioux (synset 106932906)

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