that part of the sky designated for the sole use of aircraft.
The cavity in a cavity wall containing air for insulation.
The portion of an enclosed area which contains air, especially breathable air.
Space (i.e. a few neighboring frequencies) available for broadcasting within a particular frequency band.
A specified portion of the atmosphere, especially that under the technical aviation control and/or jurisdiction of a particular state over which territory (and territorial waters) it lies.
An instance of an aircraft taking off or landing.
An act of emptying the bowels.
Physical motion between points in space.
A trend in various fields or social categories, a group of people with a common ideology who try together to achieve certain general goals
Melodic progression, accentual character, tempo or pace.
A system or mechanism for transmitting motion of a definite character, or for transforming motion, such as the wheelwork of a watch.
The deviation of a pitch from ballistic flight.
A pattern in which pairs change opponents and boards move from table to table in duplicate bridge.
A large division of a larger composition.
The impression of motion in an artwork, painting, novel etc.