1
: a family of languages spoken by Indigenous peoples of central and southeastern North America
2
plural Siouan
: a member of any of the peoples speaking Siouan languages
Examples of Siouan in a Sentence
Recent Examples on the Web
The slender vessel was recovered in 2023 in partnership with the Waccamaw Siouan Tribe.
—
Sarah Kuta,
Smithsonian Magazine,
2 July 2025
Despite violent displacement and enslavement of the Algonquian, Iroquian, and Siouan-speaking Indigenous cultural groups throughout the state by white settlers, their descendants still live in Virginia today.
—
Elizabeth Alexander,
Condé Nast Traveler,
4 July 2023
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Sarah Kuta,
Smithsonian Magazine,
2 July 2025
Despite violent displacement and enslavement of the Algonquian, Iroquian, and Siouan-speaking Indigenous cultural groups throughout the state by white settlers, their descendants still live in Virginia today.
—
Elizabeth Alexander,
Condé Nast Traveler,
4 July 2023
Cite this Entry
“Siouan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Siouan. Accessed 5 Jul. 2026.
Copy CitationKids Definition
Siouan
noun
Siou·an
ˈsü-ən 
1
: an Indigenous language stock of central and southeastern North America
2
: a member of any of the Indigenous peoples speaking Siouan languages
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