A literary' device used to enhance sound effect in poetry is __________

The literary device used to enhance sound effect in poetry is alliteration. Alliteration is a technique that involves the repetition of the initial consonant sound in words that are close to each other. This technique is used to create a musical and rhythmic effect, as well as to emphasize certain words or ideas. For example, in the sentence "Peter Piper picked a peck of pickled peppers," the repetition of the "p" sound creates a musical and rhythmic effect that makes the sentence more memorable and pleasing to the ear. Alliteration is commonly used in poetry to create a specific tone or mood, and to emphasize certain words or phrases. It is also used to create a sense of unity and coherence within a poem.