What figure of speech uses repetition?

There are many figures of speech that use repetition:

Rhyme - Repeating sounds at the end of words.

Alliteration - Uses repetition of a specific consonant sound at the beginning of words or syllables.

And many more! But these are basic ones that you might be referring to.

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.

a, overstatement is the answer