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English definition of “breach”

breach

noun [C] uk   /briːtʃ/ us  

breach noun [C] (BROKEN PROMISE/RULE)

an act of breaking a law, promise, agreement, or relationship: They felt that our discussions with other companies constituted a breach of/in our agreement. He was sued for breach of contract. There have been serious security breaches (= breaks in our security system).Obeying and breaking the lawObedient and compliantDisobedientBad and wrong behaviourMaking and breaking promises and commitments (a) breach of the peace specialized (an example of) illegal noisy or violent behaviour in a public placeSocial order and disorder be in breach of sth formal to be breaking a particular law or rule: The theatre was in breach of the Health and Safety Act for having no fire doors.Obeying and breaking the lawObedient and compliantDisobedientBad and wrong behaviour

breach noun [C] (OPENING)

formal a hole that is made in a wall or another structure used for protection during an attack: A cannon ball had made a breach in their castle walls.Making holes in things

breach

verb [T] uk   /briːtʃ/ formal us  

breach verb [T] (BREAK PROMISE/RULE)

to break a law, promise, agreement, or relationship: They breached the agreement they had made with their employer.Obeying and breaking the lawObedient and compliantDisobedientBad and wrong behaviourMaking and breaking promises and commitments

breach verb [T] (MAKE OPENING)

to make an opening in a wall or fence, especially in order to attack someone or something behind it: Their defences were easily breached.Making holes in things
(Definition of breach from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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