Definition of revision noun from the Oxford Advanced American Dictionary

        

    revision

     noun
    noun
    NAmE//rɪˈvɪʒn//
     
     
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  1. 1 [countable] a change or set of changes to something He made some minor revisions to the report before printing it.
  2. 2 [uncountable, countable] the act of changing something, or of examining something with the intention of changing it a system in need of revision a revision of trade policies Their educational policies are due for revision.
See the Oxford Advanced Learner's Dictionary entry: revision