American English

Definition of custom noun from the Oxford Advanced American Dictionary

      

    custom

     noun
    noun
    NAmE//ˈkʌstəm//
     
    see also customs
     
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  1. 1[countable, uncountable] custom (of doing something) an accepted way of behaving or of doing things in a society or a community an old/ancient custom the custom of giving presents at Christmas It's a local custom. It is the custom in that country for women to marry young.
  2. 2[singular] (formal or literary) the way a person always behaves synonym habit, practice It was her custom to rise early. As was his custom, he knocked three times.
See the Oxford Advanced Learner's Dictionary entry: custom