(law) a breach of contract sufficiently serious to destroy the contract / a breach of a treaty which releases other parties from any obligation under it

(law) A breach of contract where one party indicates prior to the time of performance that it will not perform when performance is due.

(transitive, idiomatic, American spelling) To demonstrate (a rule, law, or policy) by breaking or breaching it.

(law) An act, omission or concealment, by which a person who has a fiduciary duty to act in the interest of another instead uses their position for their own benefit.

Used other than figuratively or idiomatically: see breach, promise. / (law) A tort in common law arising when a man withdraws an earlier promise to marry a woman; abolished in many jurisdictions.

(law) A failure to meet an obligation under the terms of a contract.

(British spelling) Alternative form of honor in the breach.

The breaking of an embankment by the sea.

(law) The legal offense of engaging in public behavior which is violent, rowdy, or disruptive. / (by extension) Any public disturbance or disorderly behavior.

(military) The clearing of a passage through a minefield or other barrier by various improvised means.