Dictionary.net

• a chief of the Sioux who resisted the invasion of the Black Hills and joined Sitting Bull in the defeat of General Custer at Little Bighorn (1849-1877)

2006 - WordNet 3.0
By Princeton University

• a chief of the Sioux who resisted the invasion of the Black Hills and joined Sitting Bull in the defeat of General Custer at Little Bighorn (1849-1877)

2011 - English Dictionary Database
By DataStellar Co., Ltd