cupola

/ˈkjuːpələ/
noun
  1. A small, dome-shaped structure on top of a building, often used for decoration or to let in light.
    • The old courthouse has a beautiful copper cupola on its roof.
    • From the cupola, you can see the entire town.
    • They added a cupola to the barn to improve ventilation.
  2. A dome-shaped roof or ceiling.
    • The architect designed a glass cupola to flood the room with natural light.
    • The cathedral's cupola was painted with scenes from the Bible.
    • The cupola of the capitol building is a famous landmark.
Synonyms
What does "cupola" mean? | whatsthatwordmean | whatsthatwordmean