1. The failure to fulfill or breach of an obligation, responsibility, or legal duty owed to another person or entity
The employee's violation of duty resulted in disciplinary action.
A violação de dever do funcionário resultou em ação disciplinar.
2. In legal contexts, a breach of fiduciary duty or professional obligation
The lawyer was accused of violation of duty for failing to represent the client adequately.
O advogado foi acusado de violação de dever por não representar adequadamente o cliente.