American English

Definition of breach noun from the Oxford Advanced American Dictionary



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  1. 1[countable, uncountable] breach of something a failure to do something that must be done by law a breach of contract/copyright/warranty They are in breach ofArticle 119. Selling goods constituted a breach of regulation 10B.
  2. 2[countable, uncountable] breach of something an action that breaks an agreement to behave in a particular way a breach of confidence/trust a breach of security (= when something that is normally protected is no longer secure)
  3. 3[countable] a break in a relationship between people or countries a breach in Franco-German relations
  4. 4[countable] an opening that is created during a military attack or by strong winds or seas They escaped through a breach in the wire fence. A breach in the mountain wall permits warm sea air to flow inland.
  5. Idioms
    step into the breach
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    to do someone's job or work when they are suddenly or unexpectedly unable to do it
See the Oxford Advanced Learner's Dictionary entry: breach

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