Although the general usage of synonymous character’s form is described as a way or a method for makingYitizi,the phenomena should be formed by the nature ofYitizi.However,it cannot say that the different characters made by synonymous character’s forms are Yitizi.In Shuowen,the characters made by “Zhi,Zu,Zou,Chuo,Chi and Xing”six synonymous character’s forms show that the general usage and opposition of these forms simultaneously existed,and the opp...