book out
phr. v..phr. v.. to reserve all the rooms in a hotel or all the seats in a place so that none are left for others.
phr. v.. to reserve a venue, accommodation, or service to its full capacity, rendering it unavailable to other parties.
The hotel is booked out for the wedding.
We tried to get a table at the new restaurant, but they were booked out weeks in advance.
The conference centre was completely booked out by the tech firm, forcing other organizations to seek alternative venues for their annual summits.
often used in the passive voice ('be booked out') to describe a state of unavailability.
contrast with 'fully booked' (an adjective phrase) and 'book up' (a near-synonym often used for schedules or time slots); 'book out' is particularly common in British and Australian English.
The hotel is book out.The hotel is booked out.when describing the state of the hotel, you must use the past participle 'booked'.