Definition SHUTTER

shutter
ˈʃʌtə/
noun
 
  1. 1.
    each of a pair of hinged panels fixed inside or outside a window that can be closed for security or privacy or to keep out the light.
    "he threw open the shutters to let in air and light"
    synonyms:screenlouvreblindroller blindvenetian blindcurtainshadeawningcanopy;More