a criminal who commits homicide (who performs the unlawful premeditated killing of another human being) | the discharge of a firearm as signal or as a salute in military ceremonies |
| a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) |
| large but transportable armament |
| a hand-operated pump that resembles a pistol; forces grease into parts of a machine |
| a pedal that controls the throttle valve |
| a professional killer who uses a gun |
| a person who shoots a gun (as regards their ability) |