1. group of N American languages: a group of Native North American languages that are, or were, spoken in central and eastern Canada and parts of the central and eastern United States. Algonquian includes the languages of the Arapaho, Blackfoot, Cheyenne, Delaware, Fox, Ojibwa, Sauk, and Shawnee peoples.
2. member of Algonquian-speaking people: a member of an Algonquian-speaking people