Coffer – A strong, secure chest or box used for storing valuables
The cougher (coffer) made so much noise that it broke the chest containing the valuables.
Examples of coffer in a sentence
The large coffer was pride of place in the church, but you were not allowed to touch it.
Grandma left me an antique coffer in her will, but sadly it was empty.
I hid in the coffer playing hide and seek but got locked in.