To terminate abnormally.
The abnormal termination of a program.
Termination of a process prior to completion.
To exit a mode or function.
To withdraw from something one has agreed to do.
To draw from behind the back [+accusative = a knife etc.] (as also bare back).
To undo (a change).
Coordinate terms: cancel, call off, get cold feet
To reverse (a vehicle) from a confined space.
See also: sell short
To dare (someone) to not withdraw from a challenge.
To bet on someone losing.
Coordinate term: scare off