A break, discontinuance, or interruption
That which breaks off, or is broken off
The first shot in a game of snooker or other cue-game
To play the first shot in a game of snooker
A break from a tense, heated or stressful situation (often enforced, sometimes as a disciplinary measure); a cooling-off period.
I'm going to take a brief time-out from this job.
A short break in the action of a sport, for substitution, consultation, etc.
The abortion of an incomplete task after a time limit considered long enough for it to end normally.