noun / verb
vault
An arched structure forming a roof or enclosed space.
A stone vault forms the ceiling of the old chapel.
Etymology
The source concerns a turn or curved form. Architecture uses vault for an arched covering that turns across the space beneath it.
More examples
- The family burial vault lies beneath the church.
- Brick vaults support the roof above the passage.
- The builders vault the ceiling with rows of brick.
Forms
vault · vaults · vaulted · vaulting