Bullying is a form of physical, psychological or verbal abuse. It involves one person or a group of persons picking on another individual or group of individuals. The bully is perceived as having more power over the person or group being bullied.
Physical bullying can include hitting, shoving, tripping, even sexual assault. Psychological bullying may include controlling the other through intimidation, ganging up, exclusion, gossiping or undermining a person's position or competencies.