n A collection of sheets of paper bound together to hinge at one edge, containing printed or written material, pictures, etc.
n A long work fit for publication, typically prose, such as a novel or textbook, and typically published as such a bound collection of sheets.
n A major division of a long work.
n A record of betting (from the use of a notebook to record what each person has bet).
n A convenient collection, in a form resembling a book, of small paper items for individual use.
n The script of a musical.
n (usually|in the plural) Records of the accounts of a business.
n A long document stored (as data) that is or will become a book; an e-book.
n (legal) A colloquial reference to a book award, a recognition for receiving the highest grade in a class (traditionally an actual book, but recently more likely a letter or certificate acknowledging the achievement).
n (poker slang)four of a kindWeisenberg, Michael (2000) [http://www.poker1.com/mcu/pokerdictionary/mculib_dictionary_info.asp The Official Dictionary of Poker]. MGI/Mike Caro University. ISBN 978-1880069523
n (sports) A document, held by the referee, of the incidents happened in the game.
n (sports|by extension) A list of all players who have been booked (received a warning) in a game.
v (transitive) To reserve (something) for future use.
v (law enforcement|transitive) To penalise (someone) for an offence.
v (sports) To issue with a caution, usually a yellow card, or a red card if a yellow card has already been issued.
v (intransitive|slang) To travel very fast.
v (transitive) To write down.
v (transitive|legal) To receive the highest grade in a class.
v (intransitive|slang) To leave.
v (UK|_|dialectal|Northern England)(form of|Alternative simple past|bake|lang=en).