Examples:
* Consonant alliteration: "Peter Piper picked a peck of pickled peppers."
* Vowel alliteration: "An apple a day keeps the doctor away."
Key points about alliteration:
* It's about the sound of the words, not necessarily the exact same letter. For example, "kite" and "key" would count as alliteration because they share the same initial sound.
* It can be used for emphasis or memorability.
* It's commonly found in poetry, songs, and advertising slogans.
In summary, alliteration is the repetition of consonant sounds at the beginning of words, often used to create a pleasing or memorable effect.