Refers to a rounded roof or ceiling structure, often in architecture. Not an everyday word; more likely in technical or descriptive contexts.
The dome of this building stands out even from a distance.
A beautiful fresco is painted on the cupola of the church.
lava dome
Compound of 円 (round) and 頂 (top, summit). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning 'dome'.