1) Arms 2) Guns collectively 3) Implements of war 4) Munition 5) The act of firing guns 6) Type of sergeant 7) Weaponry 8) Weapons system 1) Gunning 
• (n.) That branch of military science which comprehends the theory of projectiles, and the manner of constructing and using ordnance.
(from the article `military technology`) During most of the black-powder era, with smoothbore cannon firing spherical projectiles, artillery fire was never precisely accurate at long ranges. ...
Gun'ner·y noun That branch of military science which comprehends the theory of projectiles, and the manner of constructing and using ordnance. 
Gunnery is the science of conducting the fire of artillery. Gunnery may be divided into the theoretical and practical branches. The former consists chiefly in the application of mathematics to the solution of the problems in dynamics involved in the consideration of the motion of shot through the air, and is essential to the design of good systems ...
[n] - guns collectively
noun guns collectively
the art and science of constructing and operating guns, esp. large guns. · the act of firing guns. · guns collectively.