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clearance

PRIMARY MEANINGS OF: clearance

1
n
vertical space available to allow easy passage under something
2
n
permission to proceed
FULL DEFINITIONS OF: clearance
1

n vertical space available to allow easy passage under something

Synonyms:
headroom, headway
Type of:
elbow room, room, way
space for movement

n the distance by which one thing clears another; the space between them

Type of:
interval, separation
the distance between things
2

n permission to proceed

“the plane was given clearance to land”
Type of:
license, permission, permit
the act of giving a formal (usually written) authorization
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