Synonyms of 'collapse'
1 fall down
A section of the Bay Bridge had collapsed.
Her father fell into the sea after a massive heart attack.
The whole ceiling gave way and fell in on us.
Does that mean that the whole house is subsiding?
Sometimes we just crumpled under our grief.
fall apart at the seams
The university system is falling apart at the seams.
His business empire collapsed under a massive burden of debt.
It's common to see people in the streets collapsing from hunger.
I thought he'd faint when I kissed him.
The young woman broke down and cried.
She got drunk and passed out.
He felt so ill that he blacked out.
crack up (informal)
He's going to crack up if he doesn't take a break soon.
keel over (informal)
He keeled over and fell flat on his back.
flake out (informal)
If he flakes out, cover him with a blanket.
1 falling down
Floods and a collapse of the tunnel roof were a constant risk.
Their economy is teetering on the edge of collapse.
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If you have a blackout, you temporarily lose consciousness.
I suffered a blackout which lasted for several minutes.
Thesaurus for collapse from the Collins English Thesaurus
If a building or other structure collapses , it falls down very suddenly.