Acting is an art form that requires performers to embody a character in a play, movie or TV show. One way to refer to an acting role or part is a character, which denotes the personality and traits a performer must convey. Another term is a role, which indicates the responsibility of the actor to portray the character accurately and convincingly. The terms part, character, and role are often used interchangeably and may be modified with adjectives like supporting or lead, depending on the importance of the character to the story. Other synonyms for an acting part include portrayal, performance, and interpretation, all of which describe the actor's portrayal of a character on stage or screen.