Initial rhyme is a poetic technique that involves the repetition of the initial sound of words in a verse or stanza. There are several synonyms for the term "initial rhyme" that poets may use, including "head rhyme," "alliteration," and "initial consonance." "Head rhyme" is often used when the first syllable of two or more words sound the same, while "alliteration" is the repetition of consonant sounds at the beginning of words. "Initial consonance" is similar to alliteration, but it includes the repetition of any consonant sound at the beginning of words. Whether poets use initial rhyme, head rhyme, alliteration, or initial consonance, these techniques can add depth, meaning, and musicality to their written works.