StopBullying.gov defines bullying as unwanted, aggressive behavior among school aged children that involves a real or perceived power imbalance. The behavior is repeated, or has the potential to be repeated, over time. 

Bullying includes actions such as making threats, spreading rumors, attacking someone physically or verbally, and excluding someone from a group on purpose.

StopBullying.gov defines cyberbullying as bullying that takes place over digital devices like cell phones, computers, and tablets. Cyberbullying can occur through SMS, Text, and apps, or online in social media, forums, or gaming where people can view, participate in, or share content. 

Cyberbullying includes sending, posting, or sharing negative, harmful, false, or mean content about someone else. It can include sharing personal or private information about someone else causing embarrassment or humiliation. Some cyberbullying crosses the line into unlawful or criminal behavior. 

Mindfulness is defined by the American Psychological Association as awareness of one’s internal states and surroundings. The concept has been applied to various therapeutic interventions—for example, mindfulness-based cognitive behavior therapy, mindfulness-based stress reduction, and mindfulness meditation. 

Mindfulness helps people attain calm and avoid destructive or automatic habits and responses by learning to observe their thoughts, emotions, and other present-moment experiences without judging or reacting to them.

The American Psychological Association defines resilience as the process of adapting well in the face of adversity, trauma, tragedy, threats, or significant sources of stress—such as family and relationship problems, serious health problems, or workplace and financial stressors.

A person who speaks or acts in support of an individual or cause, particularly someone who intervenes on behalf of a person being attacked or bullied. (Facing History)