Big Sioux

proper noun

A tributary of the Missouri River in eastern South Dakota and northwestern Iowa in the United States.

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Meanings

proper nounthe Big Sioux
  1. A tributary of the Missouri River in eastern South Dakota and northwestern Iowa in the United States.
Cite this entry
APA

Big Sioux. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Big%20Sioux

MLA

“Big Sioux.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Big%20Sioux. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Big Sioux,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Big%20Sioux.

Source: Big Sioux on Wiktionary, CC BY-SA 4.0.