What is the meaning of collapse?

noun

• An abrupt failure of function or complete physical exhaustion.
  • usage: "the commander's prostration demoralized his men"
  • synonyms: prostration
• A natural event caused by something suddenly falling down or caving in.
  • usage: "the roof is in danger of collapse"; "the collapse of the old star under its own gravity"
• The act of throwing yourself down.
  • usage: "he landed on the bed with a great flop"
  • synonyms: flop
• A sudden large decline of business or the prices of stocks (especially one that causes additional failures.
  • synonyms: crash

verb

• Break down, literally or metaphorically.
  • usage: "The wall collapsed"; "The business collapsed"; "The dam broke"; "The roof collapsed"; "The wall gave in"; "The roof finally gave under the weight of the ice"
  • synonyms: fall in, cave in, give, give way, break, founder
• Collapse due to fatigue, an illness, or a sudden attack.
  • synonyms: break down
• Fold or close up.
  • usage: "fold up your umbrella"; "collapse the music stand"
• Fall apart.
  • usage: "the building crumbled after the explosion"; "Negotiations broke down"
  • synonyms: crumble, crumple, tumble, break down
• Cause to burst.
  • usage: "The ice broke the pipe"
  • synonyms: burst
• Suffer a nervous breakdown.
  • synonyms: crack up, crack, crock up, break up
• Lose significance, effectiveness, or value.
  • usage: "The school system is collapsing"; "The stock market collapsed"