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Consonance is the repetition of consonant sounds within words or at the end of words in close proximity. It adds musicality and creates subtle echoes in poetry.
Assonance is the repetition of vowel sounds within words or at the end of words in close proximity.
Alliteration is the repetition of initial consonant sounds in neighboring words or stressed syllables.
Onomatopoeia: Onomatopoeia refers to words that imitate or suggest the sound they describe, adding auditory effects to poetry.