Definition of lightweight noun from the Oxford Advanced American Dictionary

     

    lightweight

     noun
    noun
    NAmE//ˈlaɪtweɪt//
     
     
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  1. 1 a boxer weighing between 126 and 135 pounds (57-61 kg), heavier than a featherweight a lightweight champion
  2. 2a person or thing that weighs less than is usual
  3. 3(informal) (disapproving) a person or thing of little importance or influence a political lightweight He's an intellectual lightweight (= he does not think very deeply or seriously).
See the Oxford Advanced Learner's Dictionary entry: lightweight

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