Final answer:
Bullying is when someone purposely says or does something to hurt someone else. It can take various forms and has negative consequences on the mental health of the victims.
Step-by-step explanation:
When someone purposely says or does something that is meant to hurt someone else, this is referred to as bullying. Bullying can take various forms, including physical, psychological, emotional, or social abuse. It can occur among children or adults, and can have serious negative consequences on the mental health of the victims. Cyberbullying has a variety of manifestations, such as sending threatening messages, posting embarrassing images, or harassing someone in public forums.