Assonance

Assonance is the repetition of vowel sounds to create internal rhyming within phrases or sentences, and together with alliteration and consonance serves as one of the building blocks of verse. For example, in the phrase "Do you like blue?", the /uː/ ("o"/"ou"/"ue" sound) is repeated within the sentence and is assonant.

Assonance is found more often in verse than in prose. It is used in (mainly modern) English-language poetry, and is particularly important in Old French, Spanish and the Celtic languages.