(an instance of) collapsing

downfall, breakdown

the act of destroying for being destroyed

demolition, devastation

(a) large or sudden misfortune (e.g. a flood or fire, an earthquake, a serious defeat in war, the loss of a large sum of money)

accident, trouble

a heavy fall (of rain etc)

disgrace, ruin

failure to keep, maintain or use something

misfortune, deficit; something misplaced or lost

(an instance of) a failure of a court to administer justice properly; (an instance of) a failure to deliver to the correct destination

failure

a destroyed state; a state of financial collapse; a building that has been destroyed

situation of devastation