多義語의 意味構造와 擴張에 關한 硏究
(A) Study on the Meaning Structure and Extension of Polysemous Words
다의어 의미구조 의미확장;
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This thesis is a study on meaning structure and extension of polysemous words based on the prototype theory and Wittgenstein's family resemblance theory in cognitive semantics. Chapter 2 reviews the definitions of polysemous word and the processes of its occurrence and compares linguistic phenomena of polysemy and homonymy. In chapter 3, we show that most of the words have polysemous meaning structure and word meanings are extended on the basis of metaphor and metonymy. There are three kinds of meaning structure: core meaning structure, meaning network structure, and meaning chain structure. Classical tradition for linguistics hold the view that all constituents (or members) have common properties (i.e. defining properties) among themselves. But prototype theory and family resemblance theory in cognitive semantics claim that all constituents of a category have no common properties among themselves. A word has a core/central meaning. When a word is used in various contexts and situation, it has a lot of meaning extensions. There are two kinds of extended meanings: metaphorically extended meanings and metonymically extended meanings. This meaning extension is progressed synchronically or diachronically. Thus extended meanings are derivative and transferred meanings. Chapter 4 provides the real analysis of some polysemous words ('head', 'hold', and 'over') based on the meaning network structure and prototype theory and family resemblance theory. In conclusion, polysemous words show internally radial structure from core meaning to peripheral meanings. And also extended meanings are related with core meaning, and formed of meaning network structure.