COLLAPSE
(of a structure) suddenly fall down or give way
(of a person) fall down and become unconscious as a result of illness or injury
fail suddenly and completely
fold or be foldable into a small space
an instance of a structure falling down or giving way
(of a person) fall down and become unconscious as a result of illness or injury
fail suddenly and completely
fold or be foldable into a small space
an instance of a structure falling down or giving way