a word that is invented and does not exist in the language you are using

The teacher asked children to spell nonsense words. 老师让孩子们拼写无意义的单词。

Some of the nonsense words from "The Jabberwocky" have been taken into standard dictionaries of the English language. 《炸脖龙》（The Jabberwocky）中的一些无意义词已被收录进标准英语词典中。