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Pronunciation varies by accent · noun
(military) A pyrotechnic device that generates a loud noise, used to simulate battlefield conditions..
Use thunderflash when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Thunderflash means (military) A pyrotechnic device that generates a loud noise, used to simulate battlefield conditions..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use thunderflash where its definition matches the intended context.
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