clearance
noun
clear·ance
ˈklir-ən(t)s 
1
: an act or process of clearing: such as
a
: the removal of buildings from an area (such as a city slum)
b
: the act of clearing a ship at the customhouse
also
: the papers showing that a ship has cleared
c
: the offsetting of checks and other claims among banks through a clearinghouse
d
: certification as clear of objection : authorization
security clearance
e
: a sale to clear out stock
f
: authorization for an aircraft to proceed especially with a specified action
clearance to land
2
: the distance by which one object clears another or the clear space between them
3
: the volume of blood or plasma that can be freed of a specified constituent in a specified time by its excretion into the urine through the kidneys
a creatine clearance of 25 milliliters per minute
called also renal clearance
Examples of clearance in a Sentence
She has a security clearance that allows her to see the classified information.
The pilot got clearance to land.
That flight has not received clearance for landing.
There was only 10 inches of clearance between the car and the side of the tunnel.
a bridge with a 100-foot clearance above the water
the clearance of forests for farming
slum clearance to make room for new housing
Recent Examples on the Web
But as of August 29 all imports, regardless of their value, are subject to extra customs clearance procedures and potential duties.
—
Aliss Higham, MSNBC Newsweek, 14 Oct. 2025
The remaining 10 percent typically is missing information required to go through customs clearance on the first day, a UPS spokesperson told Sourcing Journal.
—Glenn Taylor, Sourcing Journal, 13 Oct. 2025
Other features like adjustable legs, zero clearance, and headboard brackets will help the frame fit into your space.
—Nashia Baker, Architectural Digest, 10 Oct. 2025
Dart eventually got up and jogged to the blue medical tent, where he was checked for a concussion — his third such check and clearance since the preseason.
—Charlotte Carroll, New York Times, 10 Oct. 2025
See All Example Sentences for clearance
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Aliss Higham, MSNBC Newsweek, 14 Oct. 2025
The remaining 10 percent typically is missing information required to go through customs clearance on the first day, a UPS spokesperson told Sourcing Journal.
—Glenn Taylor, Sourcing Journal, 13 Oct. 2025
Other features like adjustable legs, zero clearance, and headboard brackets will help the frame fit into your space.
—Nashia Baker, Architectural Digest, 10 Oct. 2025
Dart eventually got up and jogged to the blue medical tent, where he was checked for a concussion — his third such check and clearance since the preseason.
—Charlotte Carroll, New York Times, 10 Oct. 2025
See All Example Sentences for clearance
Cite this Entry
“Clearance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clearance. Accessed 17 Oct. 2025.
Copy CitationKids Definition
clearance
noun
clear·ance
ˈklir-ən(t)s
1
a
: an act or process of clearing
b
: the act of clearing a ship at the customhouse
c
: the papers showing that a ship has cleared
d
: authorization for an airplane to proceed
2
: a sale to clear out stock
3
: the distance by which one object keeps from hitting or touching another or the clear space between them
Medical Definition
clearance
noun
clear·ance
ˈklir-ən(t)s
: the volume of blood or plasma that could be freed of a specified constituent in a specified time (usually one minute) by excretion of the constituent into the urine through the kidneys
called also renal clearance
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