/ wʊʃ; NAmE ; wuːʃ/ noun , verb
■ noun
[ usually sing. ] ( informal ) the sudden movement and sound of air or water rushing past :
a whoosh of air
There was a whoosh as everything went up in flames.
■ verb
[ v + adv. / prep. ] ( informal ) to move very quickly with the sound of air or water rushing
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WORD ORIGIN
mid 19th cent.: imitative.