Along with the flourishing development of computational linguistics, research on the meanings of individual words has started to resume. Polysemous words are especially brought into focus since their multiple senses have placed a real challenge to linguists and computer scientists. This paper mainly concerns the following three questions with regard to the treatments of such polysemous nouns and verbs in English and Korean. Firstly, what types of information should be represented in individual lexical entries for those polysemous words? Secondly, how different are corresponding polysemous lexical entries in both languages? Thirdly, what does a mental lexicon look like with regard to polysemous lexical entries? For the first and second questions, Pustejovsky's (1995) Generative Lexicon Theory (hereafter GLT) will be discussed in detail: the main focus falls on developing alternative way of representing (polysemous) lexical entries. For the third question, a brief discussion is made on mapping between concepts and their lexicalizations. Furthermore, a conceptual graph around conept 'bake' is depicted in terms of Sowa (2000) (Kyungpook National University)