rooflight

/R UW1 F L AY1 T/
noun
  1. 1

    A window (or set of windows) set into a roof in order to admit light

noun
  1. 1

    A light set into the roof of a motor vehicle

Source: https://en.wiktionary.org/wiki/roof%20light, https://en.wiktionary.org/wiki/rooflight