1 [uncountable and countable] the process of getting official permission or approval for something :
2 [uncountable and countable] official permission for a plane to take off or land
3 [uncountable and countable] the removal of unwanted things from a place :
the clearance of minefields
the clearance of minefields4 [uncountable and countable] the amount of space around one object that is needed for it to avoid touching another object :
There was less than a foot's clearance between the ship's sides and the wharf.
There was less than a foot's clearance between the ship's sides and the wharf.5 [uncountable and countable]BFB a process by which a cheque goes from one bank to another
6 [countable] an occasion when a player in a game such as football kicks the ball away from his or her goal

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