Sioux /ˈsu/
  蘇族[北美土人的一族]
  Sioux prop. n. sing. & pl. Ethnol. A nation of American Indians; see Dakotas.
  ◄ ►
  Sioux
       n : a member of a group of North American Indian peoples who
           spoke a Siouan language and who ranged from Lake Michigan
           to the Rocky Mountains [syn: Siouan]