What does BOOK mean?

noun

1. a written work or composition that has been published (printed on pages bound together)“I am reading a good book on economics”
2. physical objects consisting of a number of pages bound together“he used a large book as a doorstop”
3. a compilation of the known facts regarding something or someone“Al Smith used to say, `Let's look at the record'”
4. a written version of a play or other dramatic composition; used in preparing for a performance
5. a record in which commercial accounts are recorded“they got a subpoena to examine our books”
6. a collection of playing cards satisfying the rules of a card game
7. a collection of rules or prescribed standards on the basis of which decisions are made“they run things by the book around here”
8. a major division of a long written composition“the book of Isaiah”