* Alliteration: Requires repetition of the same consonant sound at the beginning of words.
* Assonance: Requires repetition of the same vowel sound within words.
* Onomatopoeia: Words that imitate the sound they represent.
For a single pair of words to exhibit all three, the vowel and consonant sounds would need to align perfectly, and also create an imitative sound. This is extremely rare and challenging to find in the English language.
Possible examples, with caveats:
* "Buzz" and "Breeze": This pair has alliteration (B sound) and onomatopoeia ("Buzz" imitates the sound of a bee). It could *arguably* have assonance as well, depending on how you interpret the "u" sound. However, the vowel sounds aren't a perfect match.
Conclusion: While you might find examples that *almost* achieve all three, finding a perfect example is very difficult due to the specific nature of these literary devices.