fanlight
nounUK /ˈfænlaɪt/
US /ˈfænlaɪt/
A fanlight is a small window above a door that lets in light.
Sunlight streamed through the fanlight above the front door.
OTHER MEANINGS
2. A semicircular or arched window, often with radiating bars like a fan.
The old church had a beautiful fanlight over its entrance.
3. A small window set above a larger window or door to admit light and air.
She opened the fanlight to let the breeze into the hallway.
4. A window with glazing bars arranged in a fan pattern.
The fanlight's delicate bars cast patterned shadows on the floor.