Meaning of “book” - Learner’s Dictionary

book

verb uk us /bʊk/
ARRANGE [ I, T ]

A2 to arrange to use or do something at a particular time in the future:

to book a ticket/hotel room
We've booked a trip to Spain for next month.
Sorry, the hotel is fully booked (= has no more rooms).
CRIME [ T ]

to officially accuse someone of a crime:

Detectives booked him for resisting arrest.
SPORT [ T ] UK

If a sports official books you, they write an official record of something you have done wrong:

The referee booked two players for fighting during the game.

(Definition of “book verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)