General Definition: 1. Something that comes out of the end of a gun or gun-like object, such as a stream of water out of a water pistol, or any thing or any action directly or indirectly associated with this, especially a bullet. As a Noun: 1. A small piece of metal with a pointed or rounded end, which is fired out of a gun. English = bullet. As a Verb or Adjective: 1. Of a bullet, to be fired out of a gun.