tiān​chuāng

skylight

天窗 tiān​chuāng
skylight noun
a window or opening in a roof or ceiling for light, ventilation, or access

Sunlight shone through the skylight into the dim attic.

sunroof noun
a movable or fixed panel in an automobile roof designed to let in light or fresh air

This new sedan is equipped with an electric panoramic sunroof.

Frequency

Movie subtitles
2.15 per million appears in 1% of films
Written text
2.38 per million

Sources

Definitions
CC-CEDICT