The term Ontario Indian refers to the Indigenous peoples of Ontario, Canada. One of the most prominent Indigenous groups in Ontario is the CREE, which is a four-letter word that can be used to solve the crossword. The CREE are an Algonquian-speaking people who have lived in the area for centuries and are now spread across Canada, the United States, and parts of Mexico. They are known for their traditional lifestyle and culture, which includes hunting, fishing, and gathering.