Merriam-Webster's Collegiate® Dictionary, 11th Edition
CRASH
I. verb
Etymology: Middle English crasschen
Date: 15th century
transitive verb
1. to break violently and noisily ; smash , to damage (an airplane) in landing,
2. to cause to make a loud noise , to force (as one's way) through with loud crashing noises, to enter or attend without invitation or without paying , to move toward aggressively (as in fighting for a rebound) , to cause (a computer system, component, or program) to crash, intransitive verb
1. to break or go to pieces with or as if with violence and noise, to fall, land, or hit with destructive force, to decline suddenly and steeply, to suffer a sudden major failure usually with attendant loss of data, to make a smashing noise , to move or force one's way with or as if with a crash , to experience the aftereffects (as lethargy or depression) of a usually prolonged episode of drug use (as of amphetamines), to go to bed or fall asleep, crasher noun
II. noun
Date: circa 1580
a loud sound (as of things smashing) ,
2. a breaking to pieces by or as if by collision, an instance of crashing , a sudden decline (as of a population) or failure (as of a business) , the process of crashing after drug intoxication,
III. adjective
Date: 1945
marked by a concerted effort and effected in the shortest possible time especially to meet emergency conditions ,
IV. noun
Etymology: probably from Russian krashenina colored linen
Date: 1812
a coarse fabric used for draperies, toweling, and clothing and for strengthening joints of cased-in books