book‧ing S3 [countable]
an arrangement to travel by train, use a hotel room etc at a particular time in the future [↪ reservation]:
bookings on cruise ships
I made a booking for two double rooms.
I'm calling to confirm my booking (=say definitely that I want to travel etc).
If you cancel your booking, there will be a small charge.
Places on the course are limited and advance booking is essential.
block booking (=a booking for a large number of dates, seats, rooms etc)
an arrangement made by a performer to perform at a particular time in the future
3DSF British English
the act of writing a football player's name in a book as a punishment for breaking the rules