What term describes the repetition of initial consonant sounds in a phrase or line of poetry?

The term that describes the repetition of initial consonant sounds in a phrase or line of poetry is alliteration. Alliteration is a stylistic device used to create rhythm, enhance the musical quality of language, and emphasize particular phrases. For example, in the phrase "whispering winds," the repetition of the initial 'w' sound is a clear demonstration of alliteration.

In contrast, assonance refers to the repetition of vowel sounds within closely placed words, which contributes to the overall sound and mood but is distinct from consonant sounds. Imagery involves language that evokes sensory experiences, creating mental pictures for the reader but does not inherently include sound patterns like alliteration. Onomatopoeia is a literary device that uses words that imitate natural sounds, such as "buzz" or "sizzle," which again is unrelated to the repetition of consonant sounds.

Thus, alliteration specifically focuses on the initial consonant sounds and is an important technique in poetry and prose to enhance the auditory experience and reinforce meaning.