(computing) A dedicated sector, usually at the beginning (first sector on first track) of a storage medium, that holds special data used to start a system.

A comic book.

A booth at a carnival, in which a person (or sometimes an animal) kisses other people in exchange for money, often as a charity fundraiser.

(physics, aerodynamics) The audible effect of a shock wave in the air, especially one caused by an aircraft flying faster than the speed of sound.

To produce such an effect.

Alternative spelling of chequebook

Alternative spelling of hymnbook

plural of book signing

(authorship) An event where an author signs copies of her/his books for fans.

simple past tense and past participle of boot