Definitions
1.nounThe act of clearing or something (such as a space) cleared
2.nounThe distance between two moving objects, especially between parts of a machine
3.nounThe 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.
4.nounA permission for a vehicle to proceed, or for a person to travel."He got clearance to travel to America, even though he had previous links to terrorists"
5.nounA permission to have access to sensitive or secret documents or other information.
6.nounA permission to use something, usually intellectual property, that is legally, but not otherwise, protected.
7.noun(retail) A sale of merchandise, especially at significantly reduced prices in order to make room for new merchandise or updated versions of the same merchandise.
8.nounThe settlement of transactions involving securities or means of payment such as checks by means of a clearing house.
9.nounThe removal of harmful substances from the blood; renal clearance.
10.nounThe act of potting all the remaining balls on a table at one visit.
11.nounThe act of kicking a ball away from the goal one is defending.
12.nounRemoval of pieces from a rank, file or diagonal so that a bishop, rook or queen is free to move along it.
13.nounClear or net profit.
14.nounThe first disposal in a chain that leaves the area of a stoppage, or a disposal that leaves the area of a stoppage itself.
15.nounThe act of leaving the area of a stoppage.