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.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day bimble
Pronunciation: ˈbɪmb(ə)l
walk or travel at a leisurely pace