book up

To become fully reserved, so no rooms, seats, or times remain available.

• These tours book up quickly.
• The flights booked up before the holiday weekend.
• Will the hotel book up before we decide?

Similar words: fill up, sell out

Common phrases: book up quickly, book up for summer

To reserve all the available rooms, seats, or times, leaving none for anyone else.

• They booked up every room.
• The club booked up all the seats on the bus.
• Did one company book the entire hotel up?

How to use it: book up something (The company booked up all the rooms for its guests.); book something up (We booked the whole hotel up for the wedding.)

Similar words: reserve everything

Common phrases: book up something, book up the rooms

To study the first moves of chess games carefully so you can play them well.

• He booked up before the chess tournament.
• I need to book up on this opening.
• She books up on new variations before important matches.

How to use it: book up on something (She booked up on the opening her opponent usually plays.)

Similar words: study openings

Common phrases: book up on openings, book up before tournaments

To study a subject so you know more about it.

• I must book up before the exam.
• She booked up on French history for the trip.
• Have you booked up on the subject yet?

How to use it: book up on something (I booked up on local history before the visit.)

Similar words: study, read up, learn

Common phrases: book up on something, book up before exams