bombardment in WordNet English dictionary

1. the heavy fire of artillery to saturate an area rather than hit a specific target
   "they laid down a barrage in front of the advancing troops"; "the shelling went on for hours without pausing"
   barrage  barrage fire  battery  bombardment  shelling 
   
2. the rapid and continuous delivery of linguistic communication (spoken or written)
   "a barrage of questions"; "a bombardment of mail complaining about his mistake"
   barrage  bombardment  outpouring  onslaught 
   
3. an attack by dropping bombs
   bombing  bombardment 
   
4. the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)
   bombardment