Definition of Sioux Falls in English:

Sioux Falls

Syllabification: Sioux Falls
The largest city in South Dakota, a commercial and industrial center in the southeastern part of the state, on the Big Sioux River; population 154,997 (est. 2008).

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Word of the day animalcule
Pronunciation: ˌanɪˈmalkjuːl
noun
a microscopic animal