crash

noun

1.
2.
a serious accident (usually involving one or more vehicles)
wreck
Derived from:
crash
3.
a sudden large decline of business or the prices of stocks (especially one that causes additional failures)
collapse
Derived from:
crash
4.
the act of colliding with something
smash
Derived from:
crash
5.
(computer science) an event that causes a computer system to become inoperative
Derived from:
crash