reservationrule
nounUK /ˌrezəˈveɪʃən ruːl/
US /ˌrezərˈveɪʃən ruːl/
A reservation rule is a rule that says you must book a place before you can use it.
The hotel's reservation rule means you must book a room before you arrive.
RELATED WORDS
OTHER MEANINGS
2. A rule that keeps something saved for a particular person or group.
The reservation rule keeps seats saved for members only.
3. A rule about how long a booked place is held before it is given away.
Under the reservation rule, your table is held for fifteen minutes.
4. A rule that limits how much of something can be set aside for later use.
The reservation rule limits how much water each farm can save.