The Siouan language is a collection of Native American dialects spoken across the Great Plains region of North America. Some synonyms for Siouan language include Dakotan, Dakota-Sioux, and Nakota. These terms are typically used to refer to specific dialects within the broader Siouan language family. Another synonym for Siouan is simply "Native American language," as it is one of many distinct language groups spoken by indigenous peoples in North America. Other related language groups include Algonquian, Iroquoian, and Athabaskan, among others. Despite the declining number of fluent speakers, efforts are ongoing to preserve and promote Siouan and other Native American languages.