Definition of conundrum noun from the Oxford Advanced American Dictionary

     

    conundrum

     noun
    noun
    NAmE//kəˈnʌndrəm//
     
     
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  1. 1a confusing problem or question that is very difficult to solve
  2. 2a question, usually involving a trick with words, that you ask for fun synonym riddle
See the Oxford Advanced Learner's Dictionary entry: conundrum