This meaning refers to a curved architectural covering placed over a building or room.
The building has a large glass dome.
Light entered through the dome above the hall.
This broader meaning refers to any rounded enclosure, cover, or building with a hemispherical form.
The telescope is housed beneath a white dome.
The stadium has a retractable dome.
This humorous informal meaning refers to the rounded upper part of the head.
He wore a hat over his bald dome.
The ball struck him on the dome.
