,| 1. | 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. |
| 2. | an arched structure resembling a vault. |
| 3. | a space, chamber, or passage enclosed by a vault or vaultlike structure, esp. one located underground. |
| 4. | an underground chamber, as a cellar or a division of a cellar. |
| 5. | 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. |
| 6. | a strong metal cabinet, usually fireproof and burglarproof, for the storage and safekeeping of valuables, important papers, etc. |
| 7. | a burial chamber. |
| 8. | Anatomy. an arched roof of a cavity. |
| 9. | something likened to an arched roof: the vault of heaven. |
| 10. | to construct or cover with a vault. |
| 11. | to make in the form of a vault; arch. |
| 12. | to extend or stretch over in the manner of an arch; overarch: An arbor vaulted the path. |
| 13. | to store in a vault: The paintings will be vaulted when the museum is closed. |
| 14. | to curve or bend in the form of a vault. |
