episode

noun episode

• incident — an individual occurrence or event.
• affair — If an event or a series of events has been mentioned and you want to talk about it again, you can refer to it as the affair.
• chapter — A chapter is one of the parts that a book is divided into. Each chapter has a number, and sometimes a title.
• occurrence — the action, fact, or instance of occurring.
• period — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.