advancereservationrule
nounUK /ədˈvɑːns ˌrɛzəˈveɪʃən ruːl/
US /ədˈvæns ˌrɛzərˈveɪʃən rul/
A rule that says you must book something before you can use it.
The hotel's advance reservation rule means we have to call a week before we arrive.
RELATED WORDS
OTHER MEANINGS
2. A condition in a contract requiring notice before a change can be made.
Under the advance reservation rule, the supplier must be told thirty days before any change.
3. A travel rule that seats or rooms are held only if booked ahead of time.
The airline's advance reservation rule applies to all discounted fares.
4. A system rule that blocks last-minute requests for a service.
The software enforces an advance reservation rule for conference rooms.