Definition of backstop noun from the Oxford Advanced Learner's Dictionary

     

    backstop

     noun
    noun
    BrE BrE//ˈbækstɒp//
     
    ; NAmE NAmE//ˈbækstɑːp//
     
     
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  1. 1(sport) a fence or screen used to stop balls from going outside the playing area Some of his pitches hit the backstop.
  2. 2(sport) (in rounders or baseball) the player who stands behind the person who is batting and catches the ball if he or she does not hit it compare catcher (1)
  3. 3something that is done or prepared in advance in order to prevent worse problems if something goes wrong The country needs a financial backstop to deal with bank failures.
See the Oxford Advanced American Dictionary entry: backstop