coffer
n
1 [C] large strong box for holding money or other valuables; chest 保险柜; 保险箱; 箱子.
2 coffers [pl]
(fml 文) store of money; treasury; funds 金库; 资金
The nation´s coffers are empty. 国库空虚.
3 [C] (architecture 建) ornamental sunken panel in a ceiling, dome, etc 镶板; 藻井(天花板、 圆屋顶等凹陷的装饰镶嵌板).
4 (also `coffer-dam) [C]
watertight structure built or placed round an area of water which can then be pumped dry to allow building work (eg on a bridge) to be done inside it 围堰; 沉箱.