reservation

/ˌrɛzərˈveɪʃən/
noun
  1. An arrangement to have something (like a seat, table, or room) held for your use at a future time.
    • She canceled her flight reservation due to the storm.
    • Do you have a reservation for the hotel room?
    • I made a reservation at the restaurant for 7 p.m.
  2. A doubt or feeling of uncertainty about something.
    • She expressed her reservation about the plan during the meeting.
    • My only reservation is the cost of the project.
    • He had reservations about accepting the job offer.
  3. An area of land set aside for Native American tribes in the United States.
    • The government signed a treaty establishing the reservation.
    • The Navajo Nation is the largest reservation in the United States.
    • Many families live on the reservation and maintain their traditions.
Antonyms