an arched structure, usually made of stones, concrete, or bricks, forming a ceiling or roof over a hall, room, sewer, or other wholly or partially enclosed construction.
an arched structure resembling a vault.
a space, chamber, or passage enclosed by a vault or vaultlike structure, esp. one located underground.
an underground chamber, as a cellar or a division of a cellar.
a room or compartment, often built of or lined with steel, reserved for the storage and safekeeping of valuables, esp. such a place in a bank.
a strong metal cabinet, usually fireproof and burglarproof, for the storage and safekeeping of valuables, important papers, etc.
a burial chamber.
an arched roof of a cavity.
something likened to an arched roof: the vault of heaven.
—v.t.
to construct or cover with a vault.
to make in the form of a vault; arch.
to extend or stretch over in the manner of an arch; overarch: An arbor vaulted the path.
to store in a vault: The paintings will be vaulted when the museum is closed.