When a writer uses phrases like "Enough is Enough" are they using a rhetorical device?

or what type of rhetorical device does this portray?

Yes, they are using an Epanalepsis

Yes, when a writer uses phrases like "Enough is enough," they are often using a rhetorical device known as epizeuxis. Epizeuxis is the repetition of a word or phrase for emphasis or to convey strong emotion. In this case, the repetition of the word "enough" creates a sense of finality, urgency, or frustration. It emphasizes the writer's stance that a threshold has been reached or a limit has been exceeded.

To determine if a writer is using a rhetorical device, you can follow these steps:

1. Identify the phrase: Look for specific phrases that stand out or have repeated words or patterns.
2. Analyze the purpose: Consider the context and the effect the phrase has on the overall message. Is it meant to emphasize a point, create a memorable statement, or influence the audience's emotions?
3. Compare with known devices: Consult a list or guide of rhetorical devices and see if the identified phrase matches any of them. Common devices include simile, metaphor, alliteration, hyperbole, and epizeuxis, among others.
4. Consider other factors: Take into account the writer's style, tone, and intent. Some devices may be used intentionally, while others may be unintentional or coincidental.

By following these steps, you can analyze and ascertain if a writer is using a rhetorical device to enhance their message.