lengthening
/ˈlɛŋ(k)θənɪŋ/noun
University
1
The process of making or growing longer.
2
a type of sound change when a sound (especially a vowel) lengthens
Sound Patterns & Rhymes
Alliteration
Words starting with the same consonant sound — used in poetry and prose to create rhythm, emphasis, and memorable phrasing (e.g. “Peter Piper picked”)
Assonance
Words sharing similar vowel sounds regardless of starting letter — creates internal melody in writing