What does the literary term 'sibilance' refer to?

The term 'sibilance' is specifically defined as the repetition of the sound 's', which creates a distinct auditory effect in poetry and prose. This sonic quality can evoke various emotions or create a particular atmosphere within the text, enhancing the reader's engagement with the work. By using sibilance, authors can draw attention to specific ideas or themes, create a sense of rhythm, or contribute to the overall mood of the piece.

In contrast, the other options refer to different literary devices, which do not align with the definition of sibilance. The repetition of vowel sounds relates to assonance, figurative language encompasses a broader range of techniques, and the comparison of two unlike things using 'like' or 'as' pertains to similes. Therefore, the correct understanding of sibilance clarifies its unique contribution to the texture and sound of the language used.