crash (v.)

late 14c., crasschen "break in pieces; make a loud, clattering sound;" probably imitative. Meaning "break into a party, etc." is 1922. Slang meaning "to sleep" dates from 1943; especially from 1965. Of destructive aircraft landings, 1910 (intransitive), 1915 (transitive). Computing sense "functional failure of a program" is from 1973. Related: Crashed; crashing. Crashing (adj.) as "overwhelming" (typically in crashing bore) is by 1930.

crash (n.)

1570s, "loud, harsh, complex sound, as of heavy things falling or breaking," from crash (v.). From 1718 as "a falling down or to pieces." Sense of "financial collapse" is from 1817; that of "collision" is from 1910; references to falling of airplanes are from World War I. Crash-landing attested by 1928. Crash-program in reference to rapid, intense instruction is by 1947; crash-course in the same sense is by 1958.

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Definitions of crash from WordNet
crash (v.)
fall or come down violently;
The plane crashed in the sea
The branch crashed down on my car
crash (v.)
move with, or as if with, a crashing noise;
The car crashed through the glass door
crash (v.)
undergo damage or destruction on impact;
the plane crashed into the ocean
The car crashed into the lamp post
Synonyms: ram
crash (v.)
move violently as through a barrier;
The terrorists crashed the gate
crash (v.)
break violently or noisily; smash;
Synonyms: break up / break apart
crash (v.)
occupy, usually uninvited;
My son's friends crashed our house last weekend
crash (v.)
make a sudden loud sound;
the waves crashed on the shore and kept us awake all night
crash (v.)
enter uninvited; informal;
let's crash the party!
Synonyms: barge in / gate-crash
crash (v.)
cause to crash;
The terrorists crashed the plane into the palace
Mother crashed the motorbike into the lamppost
crash (v.)
hurl or thrust violently;
Synonyms: dash
crash (v.)
undergo a sudden and severe downturn;
will the stock market crash again?
the economy crashed
crash (v.)
stop operating;
My computer crashed last night
Synonyms: go down
crash (v.)
sleep in a convenient place;
You can crash here, though it's not very comfortable
Synonyms: doss / doss down
crash (n.)
a loud resonant repeating noise;
Synonyms: clang / clangor / clangour / clangoring / clank / clash
crash (n.)
a serious accident (usually involving one or more vehicles);
they are still investigating the crash of the TWA plane
Synonyms: wreck
crash (n.)
a sudden large decline of business or the prices of stocks (especially one that causes additional failures);
Synonyms: collapse
crash (n.)
the act of colliding with something;
his crash through the window
Synonyms: smash
crash (n.)
(computer science) an event that causes a computer system to become inoperative;
the crash occurred during a thunderstorm and the system has been down ever since