Repetition (rhetorical device)
Repetition is the simple repeating of a word, within a short space of words (including in a poem), with no particular placement of the words to secure emphasis, within a short space of words. It is a multilinguistic written or spoken device, frequently used in English and several other languages, such as Hindi and Chinese, and so rarely termed a figure of speech, making it a multilinguistic written or spoken device.
Source: Wikipedia — Repetition (rhetorical device) (CC BY-SA 4.0)