a sound that is used in a particular language, especially one that is not considered a word, for exa

中文解释

（以语音、字母为单位而不以意义为单位的）词，词外壳 They sing rhythmic dance tunes using abstract vocables or nonsense lyrics. 他们用无意义的歌词或非表意的用词哼唱出有节奏的舞曲。