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"
(n.) A sudden and complete failure; an utter failure of any kind; a breakdown.
(n.) A falling together suddenly, as of the sides of a hollow vessel.
(v.i.) To fail suddenly and completely, like something hollow when subject to too much pressure; to undergo a collapse; as, Maximilian's government collapsed soon after the French army left Mexico; many financial projects collapse after attaining some success and importance.