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air officer
air pistol
air plant
air pocket
air police
air popper
air pressure
air print
air pump
air quality index
air rage
air raid
air raley
air-ready
air rifle
air rights
air roll
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air speed
air speed


noun 
Definition:
 
speed through air: the speed of an aircraft in relation to the air through which it moves
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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