Answer: assonances

AnswerCrossword Clue
ASSONANCESIdentical vowel sounds
assonancesIn poetry, the repetition of the sound of a vowel or diphthong in nonrhyming stressed syllables near enough to each other for the echo to be discernible (e.g., penitence, reticence)
assonancesASSONANCE, vowel-rhyme, coincidence of vowel sound without regard to consonants