Definition of ensign noun from the Oxford Advanced American Dictionary

     

    ensign

     noun
    noun
     
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  1. 1
    NAmE//ˈɛnsən//
     
    , NAmE//ˈɛnsaɪn//
     
    a flag flown on a ship to show which country it belongs to the United States Ensign
  2. 2
    NAmE//ˈɛnsən//
     
    an officer of low rank in the U.S. Navy Ensign Marshall
See the Oxford Advanced Learner's Dictionary entry: ensign