《方言》,书名全称为《輶轩使者绝代语释别国方言》。该书名含有三层意思:“輶轩使者”暗示了全书的资料来源,是作者像輶轩使者一样调查整理得到的,“绝代语释”与“别国方言”则交代了全书包括古今语和方言词语两大内容。该书从活的语言出发,是我国汉语方言学的第一部著作,被称为“悬诸日月不刊之书”。郭璞在《方言注·序》中也给予高度评价,说其是“考九服之逸言,标六代之绝语,类离词之指韵,明乖途而同致;辨章风谣而区分,曲通万殊而不杂;真恰见之奇书,不刊之硕记也。” “Dialect”, the full title of the book, “Xuan Xuan Zuo Xinyue language interpretation of other countries.” The title of the book contains three meanings: “The Messenger” implies that the source of the book is the author’s investigation and arrangement of the same as the Messenger, Confessed to the book, including ancient and modern language and dialect words two major content. The book, starting from the living language, is the first book of Chinese dialectology in our country and is known as the book entitled “Suspending the Sun and the Moon”. Guo Pu also spoke highly of “dialect note sequence”, saying that it is The rhyme and differentiation of the wind, Qu Qi Tongshu not mixed; Really see the odd book,