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Pronunciation varies by accent · adjective
(of a speed, aviation) equal to, or greater than, or capable of achieving, ten times the speed of sound..
Use plasmasonic when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Plasmasonic means (of a speed, aviation) equal to, or greater than, or capable of achieving, ten times the speed of sound..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use plasmasonic where its definition matches the intended context.
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