The term 'First Nations Group' refers to the Indigenous peoples of Canada. The two crossword solutions for this term are 'Crees' (5 letters) and 'CREE' (4 letters). The CREE are an Indigenous people of North America who live in an area stretching from the Great Slave Lake in the Northwest Territories to the Hudson Bay in Manitoba, Canada. They are one of the largest First Nations groups in Canada and have a rich culture and history.