violationvi·o·la·tion /ˌvaɪəˈleɪʃən/ noun1[countableC, uncountableU] an action that breaks a law, agreement, principle etcEmployers who fail to comply can be fined £5,000 per violation.
their blatant violation of the law
2in violation of if something is in violation of a law, agreement, principle etc, it breaks itShe was accused of starting a competing business in violation of her contract.