Definition of bulling:

Someone who impinge someone else, often  over a period of time, and at time forcing them to do something unusual . Moreover,It is an ongoing and prepense misuse of power in relationships through repeated verbal physical or social behaviour that intends to cause physical, social and psychological harm. It can involve an individual or a group misusing their power, or perceived power, over one or more persons who feel unable to stop it from happening.Bullying can happen in person or online, via various digital platforms and devices and it can be obvious or hidden .