- a river in southern Canada, flowing south and east from southeastern Saskatchewan into the Red River in southern Manitoba. 450 miles (725 km) long.
- a mountain in eastern British Columbia, Canada, in the Canadian Rocky Mountains, on the Alberta border and the Continental Divide. 11,870 feet (3,618 meters).
- a river in W Canada, rising in E Saskatchewan and flowing southeast and east to the Red River at Winnipeg. Length: over 860 km (500 miles)
- a member of a North American Indian people living in Alberta, Saskatchewan, and Montana; one of the Sioux peoples
- the language of this people, belonging to the Siouan family
