漢語裏便講嘅文言文助字、虛字，差唔多就係日文裏便講嘅「 」同「 」。就算「 」同「 」都係指冇實際意義、單係起結構作用嘅漢字，但係兩者概念又有少少唔同。下邊嘅日文嘅「 」一律翻成「虛字」。
In Chinese, the Chinese characters and imaginary characters are almost the same as the "" and "" in Japanese. Even though "" and "" refer to Chinese characters that have no practical meaning and only play a structural role, they are a little different in terms of concepts. The Japanese character "" below is translated as "imaginary character".