An acrobat, sometimes called an aerialist, is someone who does activities like juggling, tumbling, tightrope-walking and other gymnastics. Today, acrobats are usually seen at a circus. Before television, travelling acrobats would visit towns and castles to perform for the people's entertainment.
An actor is someone who plays pretend for a living. Actors put on plays on stage, or are in movies or television shows pretending to be someone else or someone made up. Their job is to entertain people. Sometimes a female actor is called an actress.
Ballet is a special kind of dance that was originally from France. Ballet has a lot of technical movements with their own names, like pirouette and battement. Ballet is usually danced to classical music.
