clearance
Concise Oxford English Dictionary © 2008 Oxford University Press:
clearance/ˈklɪərəns/
▶noun
- 1 the action or process of clearing or of being dispersed.
■ (in soccer and other sports) a kick or hit that sends the ball out of a defensive zone.
- 2 official authorization for something to proceed or take place.
- 3 clear space allowed for a thing to move past or under another: give cyclists plenty of clearance.
- 4 Snooker the potting of all the balls remaining on the table in a single break.
'clearance' also found in these Oxford entries:

