a direct and violent assault on a stronghold(noun.act)
source: wordnet30
A violent disturbance of the atmosphere, attended by wind, rain, snow, hail, or thunder and lightning; hence, often, a heavy fall of rain, snow, or hail, whether accompanied with wind or not.(noun)
source: webster1913
verb (v)
behave violently, as if in state of a great anger(verb.stative)