clearance

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[edit] English

clearance (countable and uncountable; plural clearances)

The act of clearing or something (such as a space) cleared
The distance between two moving objects, especially between parts of a machine
The height or width of a tunnel, bridge or other passage, or the distance between a vehicle and the walls or roof of such passage; a gap, headroom.
A permission for a vehicle to proceed, or for a person to travel.

The plane got clearance from air traffic control, and we were off.

He got clearance to travel to America, even though he had previous links to terrorists
A permission to have access to sensitive or secret documents or other information
A sale of merchandise at a reduced price.
(banking, finance) The settlement of transactions involving securities or means of payment such as checks by means of a clearing house.
(medicine) The removal of harmful substances from the blood; renal clearance.
(sports, billiards, snooker, pool) The act of potting all the remaining balls on a table at one visit.
(soccer) The act of kicking a ball away from the goal one is defending.
- 2010 December 29, Chris Whyatt, “Chelsea 1 - 0 Bolton”, BBC:
  
  Bolton were then just inches from taking the lead, but the dangerous-looking Taylor drilled just wide after picking up a loose ball following Jose Bosingwa's poor attempted clearance.