Definition of Big Sioux River in English:

Big Sioux River

Syllabification: Big Sioux Riv·er
A river in South Dakota and Iowa that flows for 420 miles (680 km) to the Missouri River.

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Word of the day vituperate
Pronunciation: vəˈt(y)o͞opəˌrāt
verb
blame or insult (someone) in strong language...