clearance operation

clandestine operation; covert operation

humanitarian operation; humanitarian relief operation (HUMRO)

PZ operation (pick-up zone operation)

noncombatant evacuation operation (NEO); non-combat evacuation operation

air traffic clearance

clearance decontamination

clearance time

debris clearance

diplomatic clearance

fuselage and landing gear clearance zone

load clearance zone

percentage clearance

route clearance

clearance of fires

final clearance for the targets

post clearance assessment

post clearance inspection

safe terrain clearance

start-up clearance

take-off clearance

beach clearance unit (BCU )

clearance of overhead crossovers of a bridge

forward side slope ground clearance

axle clearance

bolt-sleeve clearance

clearance adjusting nut

clearance between barrel and forearm

clearance between the cars

clearance delivery

clearance leakage

clearance of the initial point

clearance rules