initial rhyme vs alliteration

initial rhyme and alliteration both are nouns.

Word	Noun	Adjective	Verb	Adverb
initial rhyme	Yes	No	No	No
alliteration	Yes	No	No	No

As nouns, initial rhyme and alliteration are synonyms defined as:

initial rhyme and alliteration: use of the same consonant at the beginning of each stressed syllable in a line of verse

Other synonyms of initial rhyme include beginning rhyme, head rhyme.

initial rhyme (noun)	alliteration (noun)
use of the same consonant at the beginning of each stressed syllable in a line of verse	use of the same consonant at the beginning of each stressed syllable in a line of verse