Reservation

1. A tract of land set apart by the federal government for a special purpose, especially on for use of a Native American people. They lived on the Navaho Indian Reservation.
2. The act of reserving; a keeping back or withholding. I have reservations about her taking control of the company.
3. An arrangement by which accommodations are secured in advance, as in a hotel or on an airplane. The have airline reservations for our flight to England.