Definition of high road noun from the Oxford Advanced American Dictionary

     

    high road

     noun
    noun
     
    [usually singular]
     
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  1. 1 (old-fashioned) a main or important road
  2. 2high road (to something) the most direct way This is the high road to democracy.
  3. Idioms
    take the high road (in something)
     
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    to take the most positive course of action He took the high road in his campaign.
See the Oxford Advanced Learner's Dictionary entry: high road