Licensing is the system of giving official permission to do something that requires special training, safety standards, or legal authority. When someone gets a driver's license, the government is saying, “you've proven you know how to drive safely, so you're allowed to operate a car on public roads.” Without that license, driving would be illegal.

Many professions require licenses to protect the public. Doctors must pass difficult exams and complete years of training before they receive a medical license. Pilots need licenses to fly planes. Even activities like fishing often require a license, which helps manage wildlife populations and fund conservation.

Licensing also means allowing someone to use something you own or created. When a toy company wants to make action figures of characters from a popular movie, they must get a license from whoever owns those characters. The movie studio grants the license and usually receives payment called licensing fees in return. A musician might license their song for use in a commercial. A software company licenses its programs to users.

Breaking licensing rules, like practicing medicine without a license, is serious because these systems exist to keep people safe.