n any member of the warlike North American Indian peoples formerly living in New York State; the Iroquois League were allies of the British during the American Revolution
n a family of North American Indian languages spoken by the Iroquois
n a league of Iroquois tribes including originally the Mohawk, Oneida, Onondaga, Cayuga and Seneca (the Five Nations); after 1722 they were joined by the Tuscarora (the Six Nations)