同义词在语言中的运用非常广泛,在语言生活中,人们经常会使用几个相同或相近的词语来说明同一事物,表达在一定情况下人们的情绪,从而达到一种修辞的作用,本文以现代词汇学和语义学为指导,从同义词的概念,来源,类型和差异准则以及主导词四个方面进行对比分析,使我们更好的了解和掌握同义词。 Synonyms are widely used in the language. In the language life, people often use the same or similar words to describe the same things and express the emotions of the people under certain circumstances so as to achieve a rhetorical function. In this paper, Lexicology and semantics as a guide, comparative analysis of the four aspects of the concept of synonyms, sources, types and differences and dominant words, so that we can better understand and grasp the synonyms.