collapse
Definitions
To fall down or cave in suddenly, as a structure or physical object.
To fail completely or break down, often referring to an organization, system, or health.
To fold something into a more compact shape.
Examples
The old bridge began to collapse under the weight of the heavy trucks.
Exhaustion caused the marathon runner to collapse just yards from the finish line.
The sudden collapse of the stock market left many investors in a state of panic.