Definition of throughout preposition from the Oxford Advanced American Dictionary

      

    throughout

     preposition
    preposition
    NAmE//θruˈaʊt//
     
     
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  1. 1in or into every part of something They export their products to markets throughout the world.
  2. 2during the whole period of time of something The museum is open daily throughout the year.
throughoutadverb
 
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The house was painted white throughout. The ceremony lasted two hours and we had to stand throughout.