Assonance

noun

1. Resemblance of sound, especially of the vowel sounds in words, as in.
2. The repetition of identical or similar vowel sounds, especially in stressed syllables, with changes in the intervening consonants, as in the phrase tilting at windmills.
3. Rough similarity; approximate agreement.
4. Resemblance of sounds.
5. Specifically In prosody, a species of imperfect rime, or rather a substitute for rime, especially common in Spanish poetry, consisting in using the same vowel-sound with different consonants, and requiring the use of the same vowels in the assonant words from the last accented vowel to the end of the word: thus, man and hat, penitent and reticence, are examples of assonance in English.