dome
nounUK /dəʊm/
US /doʊm/
A round roof that looks like the top half of a ball.
The big building has a shiny golden dome on top.
RELATED WORDS
OTHER MEANINGS
2. Any object or natural shape that is curved like a bowl turned upside down.
The dome of the sky turned pink at sunset.
3. A covered stadium or large building with a rounded roof.
We watched the football game inside the dome.
4. The rounded top of something, such as a hill or a person's head.
Snow covered the dome of the mountain.