What is the meaning of the word "crash"?

Definitions:

(computer science) an event that causes a computer system to become inoperative noun
- the crash occurred during a thunderstorm and the system has been down ever since
a serious accident (usually involving one or more vehicles) noun
- they are still investigating the crash of the TWA plane
the act of colliding with something noun
- The stunt double had to redo the crash through the window.
to cause to crash verb
- The terrorists crashed the plane into the palace.
to fall or come down violently verb
- The branch crashed down on my car
to make a sudden loud sound verb
- the waves crashed on the shore and kept us awake all night
to move violently as through a barrier verb
- The terrorists crashed the gate.
to move with, or as if with, a crashing noise verb
- The car crashed through the glass door.
to occupy, usually uninvited verb
- My friends crashed our house last weekend.
to sleep in a convenient place verb
- You can crash here, though it's not very comfortable
to stop operating verb
- My computer crashed last night.
to undergo a sudden and severe downturn verb
- the economy crashed
to undergo damage or destruction on impact verb
- the plane crashed into the ocean