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Pronunciation varies by accent · noun
(aviation) The speed of an aircraft relative to the air through which it is flying..
Holonym: air data
Use airspeed when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Airspeed means (aviation) The speed of an aircraft relative to the air through which it is flying..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Holonym: air data
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