shooter

noun

1. 1.Someone who shoots something; a gunner, archer etc.
2. 2.A firearm.
3. 3.A video game in which shooting enemies (or targets) is the main objective.
4. 4.A professional wrestler who uses actual fighting moves as part of his style, or who speaks his mind during a live or televised event (instead of speaking from a script).
5. 5.A large marble used for knocking smaller marbles out of a chalk circle.