The situation where water breaks through a dam that is supposed to hold it back.

dam failure

(rivers, glaciers) an obstruction to the flow of a river caused by the flow of a glacier across its course

Alternative spelling of tinker's damn

A dam containing hydroelectric generators.

An iron plate in front of the dam of a blast furnace, to strengthen it.

plural of dam plate

A dam constructed across a river or stream to raise the water level so that it can turn a millwheel; also, the millpond so created.

The lodge of a beaver, in the form of a river dam with an underwater entrance.

(idiomatic) An event or set of events which has already happened and cannot be changed.