(idiomatic) Something of which salient aspects are obvious or easily interpreted.

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

(UK) To penalise someone for a punishable offence.

A waterproof book for children that can be read in the bath.

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

A book to be read in one sitting, especially during plane travel.

An ancient Egyptian funerary text of the New Kingdom consisting of spells to assist the journey of the dead into the afterlife, developed from the earlier Coffin Texts.

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.

(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.

plural of book club