assonance
/ˈæsənəns; `æsənəns/ n[U]
(rhyme that depends on the) similarity between the vowel sounds only or the consonant sounds only of two words or syllables, as in sharper and garter or killed and cold 半谐音（两个词或音节的元音类似或辅音类似, 如sharper 和garter 或killed和 cold）