deviation - definition and synonyms

noun 

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/ˌdiːviˈeɪʃ(ə)n/
singulardeviation
pluraldeviations
  1. 1
    [countable/uncountable] a difference in the usual or expected way of doing something
  2. 2
    [countable] maths the difference between one number or measurement in a series and the average of all the numbers or measurements in the series
  3. 3
    [countable/uncountable] behaviour that most people do not consider morally correct