Final answer:
Alliteration is the repetition of certain consonant sounds in close-proximity used in literature to create rhythm and emphasis.
Step-by-step explanation:
The repetition of certain consonant sounds in close-proximity is called alliteration. It is a poetic device commonly used in literature to create rhythm, emphasis, and musicality. For example, in the sentence 'Sally sells seashells by the seashore,' the repetition of the 's' sound is an example of alliteration.
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