Quote:
Rhyme is the relationship between words with different consonants immediately proceding the final unaccented vowels and identical sounds thereafter (pillow/willow, go/know, undoing/construing). Assonance is the relationship between words with different consonants immediately preceeding and following the last accented vowels, which vowels have identical sounds (hit/will, disturb/bird, absolute/unglued). Consonance is the relationship between words whose final accented vowel sounds are different but with the same consonant frame (truck/trick, billion/bullion, impelling/compiling, trance/trounce). Alliteration is the relationship between words with identical consonants preceeding the first accented vowel and differing sounds on that vowel, on the subsequent consonant, if any, and possibly, but not necessarily, on all following sounds (slip/slide, glowing/glare).
Alliteration is strickly consonants, so in that respect, Robin is correct. This surprised me, because like Xamonas I thought words starting with vowels were alliteration too. But what Emily wrote was not assonance either, according to the definition. I'm going to have to explore this further.