(n): a systematic means of communicating by the use of sounds or conventional symbols
(n): the heavy fire of artillery to saturate an area rather than hit a specific target
(n): the act of firing weapons or artillery at an enemy
(n): the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)
(n): the act of spreading outward from a central source
(n): an attack by dropping bombs
(n): (military) an offensive against an enemy (using weapons)
