godan verb (-u), transitive verb
shake off; brush off; ward off
Used for physically shaking something off (e.g., dust, water, an insect) or metaphorically shaking off a pursuer, doubt, or temptation.
彼は服についたほこりを振り払った。
He shook the dust off his clothes.
彼女は不安
She shook her head as if to shake off her anxiety.