Definition of demerit noun from the Oxford Advanced American Dictionary

     

    demerit

     noun
    noun
    NAmE//dɪˈmɛrət//
     
    (formal)
     
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  1. 1[usually plural] a fault in something or a disadvantage of something the merits and demerits of the scheme
  2. 2 a mark on someone's school record showing that they have done something wrong You'll get three demerits if you're caught smoking on school grounds.
See the Oxford Advanced Learner's Dictionary entry: demerit