vowel rhyme vs assonance

vowel rhyme and assonance both are nouns.

Word	Noun	Adjective	Verb	Adverb
vowel rhyme	Yes	No	No	No
assonance	Yes	No	No	No

As nouns, vowel rhyme and assonance are synonyms defined as:

vowel rhyme and assonance: the repetition of similar vowels in the stressed syllables of successive words

vowel rhyme (noun)	assonance (noun)
the repetition of similar vowels in the stressed syllables of successive words	the repetition of similar vowels in the stressed syllables of successive words