Which rhetorical device uses key words or phrases several times over the course of one or more sentences?

Question

inowalst · Answer

https://en.wikipedia.org/wiki/Glossary_of_rhetorical_terms

anonymous · Answer

Repetition is a literary device that repeats the same words or phrases a few times to make an idea clearer. There are several types of repetitions commonly used in both prose and poetry. As a rhetorical device, it could be a word, a phrase or a full sentence or a poetical line repeated to emphasize its significance in the entire text. Repetition is not distinguished solely as a figure of speech but more as a rhetorical device.