Epizeuxis

Epizeuxis is a rhetorical device that involves the repetition of a word or phrase in immediate succession for emphasis. This technique is often used to create a dramatic effect, highlight a particular idea, or convey strong emotions. For example, in the phrase "Never, never, never give up," the repetition of "never" emphasizes the determination and urgency of the message. It's a form of repetition that can enhance the emotional impact of speech or writing.