Alliteration is a term that describes a literary stylistic device. Alliteration occurs when a series of words in a row (or close together) have the same first consonant sound. For example, “She sells sea-shells down by the sea-shore” or “Peter Piper Picked a Peck of Pickled Peppers” are both alliterative phrases. In the former, all the words start with the “s” sound, while in the later, the letter “p” takes precedence. Aside from tongue twisters, alliteration is also used in poems, song lyrics, and even store or brand names.