Alliteration is a term that describes a literary stylistic device. Alliteration occurs when a series of words in a row (or close to a row) 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.
Assonance is the repetition of vowel sounds to create internal rhyming within phrases or sentences, and together with alliteration and consonance serves as one of the building blocks of verse. Assonance does not have to be a rhyme; the identity of which depends merely on sequence of both vowel and consonant sounds.
example:Go slow over the road. (repetition of the long o sound)