Breach

Breach. 1. A gap, hole, or rent in a fortification, caused by battering guns or by mining. The object is to create an opening in the fortress for a storming party. 2. A violation or dereliction of duty or obligation. The following are the more important instances - (1) breach of contract; (2) breach of promise of marriage; (3) breach of the peace; (4) breach of trust; (5) breach of privilege. (See the various titles.)