1. collapse
If you don't take a vacation, you'll collapse.
Financial collapse
Layne's Law describes what happens when ideaspace collapses due to bad structural support
This grim origami presents the moment when the twin towers finally collapsed
He was so tired, he just collapsed onto that chair.
Forty people were injured when a floor of a night club in Tenerife collapsed on Sunday.
Move the knob at the side of the seat forwards, collapse the seat.
If there's a big earthquake, the house could really collapse!
If you find someone collapsed on the ground, what should you do first?
The definition of collapse means to cave in, to fall or to break down into pieces when the support to stand is lost. An example of to collapse is someone falling to the ground when their knees give way after the person hears terrible news.
The government is not expected to collapse anytime soon
It was so hot that some people in the city square collapsed
A roof collapse in the early Sunday morning severely damaged a downtown Baton Rouge club.
Many banks closed because of the recent economic collapse.
the collapse of a railway bridge
2. downfall
It was her downfall.
Rampant corruption brought about the downfall of the government. In the end, it was the continual drinking that was his downfall.
I said last time that his growing confidence is likely to be his downfall
New political trends imply the downfall of democracy.
That was illegal and unethical, but it did not guarantee Nixon’s downfall, which came about because of two critical mistakes.
When he was at the acme of his career, a scandal brought about his downfall.
His love for indigenous Mexican art became his downfall.