Ban

A ban is an action used to stop people from doing something, either bad or dangerous. Ban can also be made on products. For example, Singapore, a country, bans chewing gum. Ban may sometimes be made on the Internet, where an administrator or a moderator with higher powers than other members can stop vandals from causing harm to others. Sometimes, users of a website say that moderators or administrators have banhammers that they use to ban bad users.

For the policy on Wikipedia, see Wikipedia:Blocks and bans.