Bullying is an ongoing misuse of power in relationships through repeated verbal, physical and/or social behaviour that causes physical and/or psychological harm. It can involve an individual or a group misusing their power over one or more persons. Bullying can happen in person or online, and it can be obvious (overt) or hidden (covert).
Bullying of any form or for any reason can have long-term effects on those involved, including bystanders.
Single incidents and conflict or fights between equals, whether in person or online, are not defined as bullying.