| n. | 1. | A casket, chest, or trunk; especially, one used for keeping money or other valuables. |
| 2. | Fig.: Treasure or funds; - usually in the plural. |
| 3. | (Arch.) A panel deeply recessed in the ceiling of a vault, dome, or portico; a caisson. |
| 4. | (Fort.) A trench dug in the bottom of a dry moat, and extending across it, to enable the besieged to defend it by a raking fire. |
| 5. | The chamber of a canal lock; also, a caisson or a cofferdam. |
| v. t. | 1. | To put into a coffer. |
| 2. | (Mining.) To secure from leaking, as a shaft, by ramming clay behind the masonry or timbering. |
| 3. | To form with or in a coffer or coffers; to furnish with a coffer or coffers. |