一词多义是一种普遍现象,指一个词语有多种不同却具有互相联系的意义。多义不仅是一种语言现象,也是一种认知现象。本文运用原型范畴理论对多义现象的生成进行分析,认为词的多义性表现出不同程度的家族相似性,词的多义性是在认知的基础上主要通过隐喻和转喻生成的。 Polysemy is a common phenomenon, meaning that a word has a variety of different but interrelated meanings. Polysemy is not only a linguistic phenomenon, but also a cognitive phenomenon. This paper analyzes the generation of polysemy using the theory of prototype categories. It holds that the polysemy of words shows different degrees of familial similarity, and the polysemy of words is mainly generated through metaphor and metonymy on the basis of cognition.