A form of maltreatment of a child. Somebody may abuse or neglect a child by inflicting harm, or by failing to act to prevent harm. Harm can include ill treatment that is not physical as well as the impact of witnessing ill treatment of others. This can be particularly relevant, for example, in relation to the impact on children of all forms of domestic abuse. Children may be abused in a family or in an institutional or community setting by those known to them or, more rarely, by others. Abuse can take place wholly online, or technology may be used to facilitate offline abuse. Children may be abused by an adult or adults, or another child or children.
(Definition provided by Working Together)