(aviation, travel) (in a reservation system) The letter used to signify a particular fare level.

Synonym of book learning

Alternative form of book knowledge

A book with pages made from fabric, usually cotton, designed to be used by young children.

Alternative form of sketchbook

(also idiomatic) a book which lists achievements which break records, the most famous being "Guinness World Records", formerly known as "Guinness Book of Records".

On no authority.

Used other than figuratively or idiomatically: see paper, book. / (law, England), A document prepared in English legal practice containing a record or summary of the pleadings.

Alternative form of stud book

plural of book-word