Weapon
Part of speech: noun
Definition: an instrument of attack or defense in combat or hunting, e.g. a gun, missile, or sword an instrument or other means of harming or exerting control over another
Example sentence: The best weapon against an enemy is another enemy.
Artillery
Part of speech: noun
Definition: Large cannon like weapons, transportable and usually operated by more than one personA unit of the army, that uses such weaponsgunnery
Example sentence: The idea of aerial military surveillance dates back to the Civil War, when both the Union and the Confederacy used hot-air balloons to spy on the other side, tracking troop movements and helping to direct artillery fire.