book

A book is a lot of paper joined together with writing and pictures printed on them for you to read or write in.

Example: I borrow books from the library, and keep them in a bookcase.

A book is a group of stamps, matches, tickets, etc., held together inside a paper cover.

A company's books are its money records.

Example: An outside accountant kept the books and signed the checks until he joined the company.

If you book something or someone, you reserve them for a certain time.

Example: I want to book a hotel room for tomorrow night.

If you book someone, you officially put their name in police records for a crime.

Example: The police booked him for driving too fast.