Cupola relative

The term “cupola” is used to describe a small, rounded structure that sits atop a larger building or structure, often used to provide ventilation, illuminate an interior space, or offer a distinctive design element. The term “dome” refers to a similar rounded structure, but typically refers to a much larger, freestanding structure that serves as a whole or partial roof. While the two terms are not interchangeable, they are closely related, and both serve important functional and aesthetic purposes in architecture and design. In the context of a crossword question, “Cupola relative is DOME” likely refers to the fact that these two terms are related, and that one might be used to clue or hint at the other.