Definition of bombshell noun from the Oxford Advanced American Dictionary

     

    bombshell

     noun
    noun
    NAmE//ˈbɑmʃɛl//
     
    [usually singular](informal)
     
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  1. 1an event or a piece of news which is unexpected and usually unpleasant The news of his death came as a bombshell. She dropped a bombshell at the meeting and announced that she was leaving.
  2. 2a blond(e) bombshell a very attractive woman with blond hair
See the Oxford Advanced Learner's Dictionary entry: bombshell