skylight
US /ˈskaɪ.laɪt/
UK /ˈskaɪ.laɪt/

1.
a window set in a roof or ceiling to admit daylight
:
•
The artist's studio had a large skylight, providing ample natural light.
•
We installed a new skylight in the kitchen to brighten up the space.
a window set in a roof or ceiling to admit daylight