Anonymity is the state of being unknown or unidentified. When you have anonymity, people don't know who you are. An anonymous letter arrives without a signature or return address. An anonymous donation to a charity comes from someone who chooses not to reveal their name.

Sometimes anonymity protects people who need to speak up about something important without facing consequences. A witness might give an anonymous tip to police about a crime. A student might drop an anonymous note in a suggestion box about a problem at school. In these cases, anonymity creates safety for truth-telling.

But anonymity can also make people behave badly. When someone posts mean comments online anonymously, they might say cruel things they'd never say face-to-face. The shield of anonymity sometimes brings out the worst in people because they think they won't be held accountable.

Think of it like wearing a mask at a costume party: you're there, but nobody knows it's you. Whether anonymity helps or hurts depends on what someone chooses to do with it. A person who uses anonymity to expose corruption acts very differently from someone who uses it to bully others without getting caught.