Definition of to-do noun from the Oxford Advanced American Dictionary

     

    to-do

     noun
    noun
    NAmE//tə ˈdu//
     
    [singular](informal)(becoming old-fashioned)
     
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  1. 1unnecessary excitement or anger about something synonym fuss
  2. 2 What a to-do! He made a great to-do about being left off the guest list.
See the Oxford Advanced Learner's Dictionary entry: to-do