main battery; main armament
gunport; embrasure; muzzle
empty gun; gun loaded with blanks; firing a blank
anti-aircraft gun; antiaircraft artillery
rapid-fire gun or cannon; talking rapidly; barrage of words or questions
secondary armament (of a warship); secondary battery; secondary gun
cannonball; shot (in the shot put)
railgun; firearm that uses electromagnetism to propel a projectile
battery (of artillery, cameras, etc.); barrage
field gun; field artillery
cannon (esp. high-velocity artillery)
cannon (esp. high-velocity artillery)
mounting for two or more guns (e.g. naval turret, tank)
recoilless rifle; recoilless gun
high-angle or anti-aircraft gun
cannon (esp. high-velocity artillery)
single-mounted gun (naval turret, tank, etc.)
air defense artillery; air defence artillery
cannon containing a recoil system