the effect created when two syllables in words that are close together have the same vowel sound, but different consonants, or the same consonants but different vowels, for example, sonnet and porridge or cold and killed see also alliterationTopics Languagec2准押韵,半谐韵,半谐音(靠得很近的单词中有两个音节元音相同而辅音不同,或辅音相同而元音不同) Word Originearly 18th cent.: from French, from Latin assonare ‘respond to’, from ad- ‘to’ + sonare (from sonus ‘sound’).