Definitions
1.nounAn enclosure from which water can be expelled, in order to give access to underwater areas for engineering works etc.
2.nounThe gate across the entrance to a dry dock.
3.nounA floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy; a camel.
4.nounA two-wheeled, horse-drawn military vehicle used to carry ammunition (and a coffin at funerals).
5.nounA large box to hold ammunition.
6.nounA chest filled with explosive materials, used like a mine.
7.nounA coffer.