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Pronunciation varies by accent · noun
(aviation) An air-ground communication facility operated by a private agency (not air traffic control) to provide advice at uncontrolled aerodromes and airports and to provide non-flight services such as requesting a taxi..
Use unicom when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Unicom means (aviation) An air-ground communication facility operated by a private agency (not air traffic control) to provide advice at uncontrolled aerodromes and airports and to provide non-flight services such as requesting a taxi..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use unicom where its definition matches the intended context.
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