Which figure of speech uses repetition a specific consonant sound at the beginning words or syllables to create certain sound?

The figure of speech that uses repetition of a specific consonant sound at the beginning of words or syllables is called alliteration.

Here are some examples:

* She sells seashells by the seashore.

* Peter picked a peck of pickled peppers.

* We went wandering where wild wildflowers were wandering.

Alliteration is often used to create a musical effect, emphasize certain words, or add a sense of playfulness to writing.