First Nation

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Canadian An organized aboriginal group or community, especially any of the bands officially recognized by the Canadian government.

Wiktionary

1. n. An Indian settlement or band.
2. n. Canada, usually plural The indigenous peoples of Canada (not including Inuit or Metis).
3. n. Canada, less common The indigenous peoples of any country or region.
4. adj. usually in plural Of or pertaining to a First Nation or the First Nations.