Definition of mast noun from the Oxford Advanced American Dictionary

     

    mast

     noun
    noun
    NAmE//mæst//
     
     
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  1. 1a tall pole on a boat or ship that supports the sails
  2. 2 a tall pole that is used for holding a flag
  3. 3 a tall metal tower with an aerial that sends and receives radio or television signals see also half-mast
See the Oxford Advanced Learner's Dictionary entry: mast

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