2853344 jmdict A [id=2287006] 猛威を振るう;猛威をふるう;猛威を奮う[iK];猛威を振う[sK];猛威を揮う[sK] もういをふるう [1][exp,v5u] to rage (of a storm, flu, etc.); to be on a rampage; to be rampant; to wreak havoc