1. A decorated cloth hung at the back of a stage.
  2. The setting or background of a historical event.
    The president spoke outside the brick exterior of the firehouse for Ladder Company 10 and Engine Company 10, against the backdrop of a 56-foot-long bronze bas-relief depicting the towers in flames.New York Times


  1. To serve as a backdrop for.
    a brilliant sunset backdropping the famous skyline

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