A book, often bound with a red cover, or online equivalent, that is an official, or canonical, collection of data, regulations, or writings.

Alternative spelling of bookkeeping

Accounting work; book keeping. / The art and science of formatting books. / Work done with the aid of textbooks.

A group of people who meet to discuss the books they have been reading. / A commercial organization offering subscribers a selection of books from a catalogue.

An address book, especially one in which the details of one's lovers are recorded

(historical) A book compiled in the twelfth century, containing a description of the court of exchequer of England, an official statement of the revenues of the crown, etc.

(idiomatic, intransitive, slang) To go (to a place or event).

plural of book club

A book for young children in which the narrative is accompanied by illustrations.

(informal) In one's opinion. / Used other than figuratively or idiomatically: see in, one's, book.