What distinguishes a stand-up comedian from other types of performers?

A stand-up comedian primarily relies on spoken word humor, engaging directly with an audience through jokes, anecdotes, and observational comedy. Unlike actors or musicians who may have elaborate sets or musical arrangements, a stand-up comedian typically performs solo with minimal props, relying on their wit and delivery to entertain. The key differentiator is the direct, conversational style and the improvisational element inherent in responding to audience reactions.