nonsense word/syllable

剑桥词典

words or parts of words that do not exist in the language you are using
无意义词；无意义音节（不存在于一门语言中的词或词的部份）
The child repeated the nonsense syllables "boo di doo doo". 小孩咿咿呀呀地重复着 boo di doo doo 这几个无意义的音节。 返回 nonsense word/syllable