Noun
- (countable) A book is a lot of paper joined together with writing and pictures printed on them for you to read or write in.
- I borrow books from the library, and keep them in a bookcase.
- (countable) A book is a group of stamps, matches, tickets, etc., held together inside a paper cover.
- (plural) A company's books, are its money records.
- An outside accountant kept the books and signed the checks until he joined the company.