clear

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Related to clear the air: turn up, couldn't, vanish into thin air

clear

1. emptied of freight or cargo
2. (of timber) having a smooth, unblemished surface
3. Showjumping (of a round) ridden without any fences being knocked down or any points being lost

clear

[klir]
(computer science)
To restore a storage device, memory device, or binary stage to a prescribed state, usually that denoting zero. Also known as reset.
A function key on calculators, to delete an entire problem or just the last keyboard entry.
(meteorology)
After United States weather observing practice, the state of the sky when it is cloudless or when the sky cover is less than 0.1 (to the nearest tenth).
To change from a stormy or cloudy weather condition to one of no precipitation and decreased cloudiness.
(navigation)
In marine navigation, to leave or pass safely, as to clear port or clear a shoal.
(ordnance)
To give a person a security clearance.
To operate a gun so as to unload it or make certain no ammunition remains; to free a gun of stoppages.

clear

The net distance, free from interruption, between any two surfaces or areas.

clear

i. In air traffic control, it means permitted to take off or land, cleared to carry out other maneuvers, or cleared to proceed under specified conditions. The activity the pilot is cleared to perform is either suffixed to the word clear, as in “clear to take off,” or it is in response to the request by the pilot as when “Permission to take off?” is answered by an air traffic controller's “Clear.”
ii. To rectify stoppage in an automatic weapon. Also to ensure its serviceability as in “clearing guns” (by firing a small burst into the air).
iii. Authorized to carry out any task as in “Clear to alter height” or “Clear to fly radial.”
iv. The area around the aircraft is clear for aircraft starting.
v. In reference to the sky, it is devoid of any clouds as in “clear sky.” The aircraft may also be in between layers but in VMC (visual meteorological conditions). Also means, “A portion of the sky is free or relatively free of clouds.”
vi. To check nearby airspace for safe airwork or maneuvering of aircraft.
vii. To clear an engine. To open the throttle of an idling reciprocating engine in flight to free it from carbon and/or an overrich mixture.
viii. To clear the air, meaning to gain a favorable air situation in a given sector.
ix. To authorize hardware as fit for use.
x. To fly over an obstacle without touching it (i.e., clear of obstacles).

CLEAR

(language)
A specification language based on initial algebras.

["An Informal Introduction to Specification Using CLEAR", R.M. Burstall in The Correctness Problem in Computer Science, R.S. Boyer et al eds, Academic Press 1981, pp. 185-213].
References in periodicals archive ?
The Clear the Air Facebook page is a place where customers can stay connected with the company and keep up on the latest announcements and newest additions to the Clear the Air, Inc.
There's been so much written about how we don't get on and we want to clear the air once and for all
He was at the Confederations Cup then he was going on holiday himself' As soon as the season gets under way we're going to have a meeting and clear the air.
Mr McConnell, who from the outset had been the favourite in Labour's Scottish leadership contest, made the admission yesterday in a bid to clear the air.
Ironic, since clear the air was England's exact strategy in Kiev.