Bullying is the use of force, coercion, hurtful teasing or threat, to abuse, aggressively dominate or intimidate. The behavior is often repeated and habitual. One essential prerequisite is the perception (by the bully or by others) of an imbalance of physical or social power. This imbalance distinguishes bullying from conflict.[1] Bullying is a subcategory of aggressive behavior characterized by the following three criteria: (1) hostile intent, (2) imbalance of power, and (3) repetition over a period of time.[2] Bullying is the activity of repeated, aggressive behavior intended to hurt another individual, physically, mentally, or emotionally.

Bullying ranges from one-on-one, individual bullying through to group bullying, called mobbing, in which the bully may have one or more “lieutenants” who are willing to assist the primary bully in their bullying activities. Bullying in school and the workplace is also referred to as “peer abuse”

.[3] Robert W. Fuller has analyzed bullying in the context of rankism. The Swedish-Norwegian researcher Dan Olweus says bullying occurs when a person is “exposed, repeatedly and over time, to negative actions on the part of one or more other persons”

,[4] and that negative actions occur “when a person intentionally inflicts injury or discomfort upon another person, through physical contact, through words or in other ways”.[4] Individual bullying is usually characterized by a person behaving in a certain way to gain power over another person.[5]