n.
Function: noun
Date: circa 1580
1 : a loud sound (as of things smashing) <a crash of thunder>
2 a : a breaking to pieces by or as if by collision b : an instance of crashing <a plane crash > <a system crash >
3 : a sudden decline (as of a population) or failure (as of a business) <a stock market crash >
4 slang : the process of crashing after drug intoxication