gun;  cannon;  artillery;  ordnance
 bombarding;  shelling;  bombardment
 main battery;  main armament
 concentrated fire;  intense criticism
 gunport;  embrasure;  muzzle
 sound of a gun;  roar of cannon
 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
 cannonball;  shot (in the shot put)
 secondary armament (of a warship);  secondary battery;  secondary gun
 railgun;  firearm that uses electromagnetism to propel a projectile
 battery (of artillery, cameras, etc.);  barrage
 field gun;  field artillery
 smooth-bore gun;  unrifled gun
 mounting for two or more guns (e.g. naval turret, tank)
 recoilless rifle;  recoilless gun
 cannon (esp. high-velocity artillery)
 gunsmoke;  smoke of cannon
 cannon (esp. high-velocity artillery)
 high-angle or anti-aircraft gun
 single-mounted gun (naval turret, tank, etc.)
 the smoke of guns and a rain of bullets or shells
 damaging article published by the Shūkan Bunshun weekly
 Swords and Firearms Control Law (1958)
 poor swing (golf);  hanging back during the swing; (lit.) Meiji-era cannon
 cannon containing a recoil system
 Bombardment of Yeonpyeong (November 23, 2010)
 air defense artillery;  air defence artillery