The amount of English spoken by six-year-old Navaho children as they enter first grade is increasing and will probably continue to increase. Contacts outside the reservation contribute to this increase as do the almost completely monolingual (English) schools. Location of residence is also a factor. Linguistic borrowing of English words is another indication of the increased influence of English. Although the Navaho people remain the largest group of non-English-speaking Indians in the United States, there are signs of a growing diglossia. (VM)