In this essay,the author makes researches into the 55 derived Chinese characters --called "Tongjia"in Chinese--and analyses their derivation and usages.

Discussion on the Necessity of Distinguishing “Jiajie" from “Tongjia";

The Word of Original Text can be Interpreted Clear Essentially, without Showing Suspicion of Using Tongjia in Error──Comments on Sheng(生) borrowed from Xing(性) and from Sheng(牲)

A few of Xieyin in Shi Ji Zhuan are relative to some written phenomena including Tongjia-zi,Yiwen etc.

This article choose three such sutras to study the value of Buddhist sutra in the collation,word exegesis and phonetic loan characters.

People in ancient times always used phonetic loan characters in their writing.

By examining the interchangeability of Chinese characters as well as the taboo of the Qin Dynasty,we can get a conclusion that "腾" equals "朕"(meaning king),which can be understood as "封"(meaning seal),thus "当腾腾" means to be sealed.

Moreover, the book gives a contrast between the explanations of Shuo-wen, which mainly focuses on the meanings of word itself and Guang-yun which, instead, sometimes on the extended or borrowed meanings with more or less inaccuracy between ancient and modern words.

The erroneous interpretation is mainly embodied by taking extended meanings as the original one, regarding the borrowed meaning as the original and determining the meaning by looking at the surface of the writings.

Their differences lie in that a word includes both connotation and denotation,while a character,besides theses two,may have borrowed meaning and interchangeable borrowed meaning.