1. 1 〔打つ音〕
    • 答えを思いついてはたと膝を打った
    • He slapped his knee when he hit on the answer.
  1. 2 〔にらみつける様子〕
    • 彼は私をはたとにらみつけた
    • He gave [cast] a sharp glance at me.
  1. 3 〔突然〕
    • 急に質問されてはたと困った
    • Confronted by a sudden question, I found myself at a loss for an answer.
    • 風がはたとやんだ
    • The wind suddenly died down.
    • 虫の声がはたとやんだ
    • The insects fell silent all of a sudden.
    • はたと思い当たった
    • It suddenly dawned on me.
    • その考えがはたと思い浮かんだ
    • The idea occurred to me in a flash.