First Nation

Short definition from Wiktionary

Noun

1. 1
   A community of indigenous peoples of Canada (typically not including the Inuit or Metis), especially one officially recognized by the federal government.
2. 2
   A community or settlement of indigenous peoples of any country or region.
3. 3
   A community or settlement of indigenous peoples of any country or region: A community of indigenous (Aboriginal and Torres Strait Islander) peoples of Australia; a group of Indigenous Australians.

Adjective

1. 1
   Alternative form of First Nations