Definition of roof light in English:

roof light


  • 1A window built into a roof.

    • ‘The roof lights that illuminate the entrance to the subway are circular sets of bottle-lights, possibly railway signal lenses, set in concrete.’
    • ‘People generally prefer light from above rather than the side, so high level glazing and roof lights are more comfortable and are actually more efficient sources of daylight.’
    • ‘Our visitors comment favourably on the redecorated Gallery with its new roof lights, and their children as ever like the bear better than anything else in the house.’
    • ‘The interior is bright white, and light cascades in through the roof lights.’
    • ‘The lights are fitted inside the roof light nozzles, which function as peep holes to the outside.’
    1. 1.1 A small interior light on the underside of the roof of a motor vehicle.
    2. 1.2 A flashing warning light on the top of a police car or other emergency vehicle.
      • ‘The arresting officer activated his emergency roof lights and signalled to Deacon to stop.’
      • ‘The roof lights and siren came on as the big cop began the chase.’
      • ‘As the vehicle pulled ahead, he activated the roof light on his cruiser and pulled behind the vehicle.’
      • ‘He engaged his roof lights and siren momentarily and the subject vehicle immediately stopped.’