collapse the music stand.
fold up your umbrella.
he landed on the bed with a great flop.
Negotiations broke down.
the building crumbled after the explosion.
The business collapsed.
the collapse of the old star under its own gravity.
the commander's prostration demoralized his men.
The dam broke.
The ice broke the pipe.
The roof collapsed.
The roof finally gave under the weight of the ice.
the roof is in danger of collapse.
The school system is collapsing.
The stock market collapsed.
The wall collapsed.
The wall gave in.