《尔雅》是中国训诂学的“始祖”，是一部汇集上古典籍训诂的重要著作。全面考察《尔雅》同训词条中的语义关系，是传统训诂学与汉语词汇语义学研究中的重要课题。本文旨在以《尔雅》（《释诂》《释言》《释训》）同训词条为研究对象，以现代训诂学原理和训诂方法论为指导，借鉴现代词汇语义学的理论方法，从词位、义位、义值三个角度研究《尔雅》（前三篇）同训词条的语义关系，包括分析《尔雅》（前三篇）同训词条中同训词的语义关系类型、训词与被训词的语义关系及各自的特性，进而探求传统训诂学的训释规律及其学术价值。

本文分为上编和下编。上编是本文的理论部分，主要包括以下内容：

绪论介绍本文的选题依据与研究宗旨、研究目标与研究意义、研究方法与研究版本，同时综述相关课题的研究成果，明确研究对象的选定。

第一章是《尔雅》同训词条的词位研究。确立词位的判定原则，并对《尔雅》（前三篇）同训词条中的词位进行整理与分析。

第二章是《尔雅》同训词条的义位研究。确立义位的判定原则，整理《尔雅》（前三篇）同训词条中的义位，再从语义重合度、词义引申规律、词性等角度分析义位。

第三章是《尔雅》同训词的语义关系类型研究。分析《尔雅》（前三篇）同训词中同义词、同源词、类义词和语义无关词这四种语义关系类型，列举“大也”等四组典型的同训词条作为示例，最后讨论被训词的语义特性。

第四章是《尔雅》同训词条的训词与被训词的语义关系研究。采用义素二分法分析《尔雅》（前三篇）同训词条的训释类型，通过探讨训词与被训词的语义结构关系，把《尔雅》（前三篇）训释分为等值训释、不等值训释、文意训释三种类型，最后讨论训词的语义特性。

第五章是《尔雅》的性质与现代训释理论的创建。通过前述对《尔雅》训释材料的具体探讨，重新审视《尔雅》同训纂集的性质及成因，考察《尔雅》训释的学术价值，并着重探讨它对创建现代训释理论的启示。

下编对《尔雅》（前三篇）同训词条的语义关系进行了逐条考释，是对上编理论部分的重要材料支撑。

This thesis is divided into two parts. The first part is the theoretical part of this thesis, which mainly includes the following contents:

The introduction introduces the basis of the topic selection and research purpose, research objectives and research significance, research methods and research versions of this thesis, and summarizes the research results of related topics, and defines the selection of research objects.

The first chapter is the study on the lexemes of the tongxun entries in ErYa. Establish the principle of morphological determination, and organize and analyze the lexemes of the tongxun entries in ErYa (the first three chapters).

The second chapter is the study on the sememes of the tongxun entries in ErYa. Establish the principle of sememe determination, sort out the sememes of tongxun entries in ErYa (the first three chapters), and then analyze the sememes from the perspectives of semantic coincidence, semantic extension rules, and part of speech.

The third chapter is the study on the tongxun lexical words’ semantic relation types of the tongxun entries in ErYa. This chapter analyzes the four semantic relation types of synonyms, cognate words, lexical clusters and semantically irrelevant words in the tongxun lexical words in ErYa (the first three chapters), and lists four groups of typical tongxun entries such as "DaYe" as examples, and then discuss the semantic features of the the explained words.

The fourth chapter is the study on the semantic relation between the words for explanation and the explained words of the tongxun entries in ErYa. Using the dichotomy of semanteme to analyze the types of explanation of the tongxun entries in ErYa (the first three chapters), and by discussing the semantic structure relation between the words for explanation and the explained words, the explanation of ErYa (the first three chapters) is divided into three types, which are equal value explanation, unequal value explanation and explanation of contextual meaning. Finally, the semantic features of the words for explanation are discussed.

The fifth chapter is about the nature of ErYa and the creation of modern explanation theory. Through the above-mentioned specific discussion on the explanation materials of ErYa, we re-examine the nature and causes of the tongxun compilation of ErYa, examine the academic value of ErYa, and focus on the inspiration to the establishment of modern explanation theory.

The second part examines and explans the semantic relation of the tongxun entries in ErYa (the first three chapters), which is an important material support for the first theoretical part.