In order to acquire required information from the document which exists on the Internet, existence of a search engine is indispensable. To a demand of a user, it must answer and, a thing called a search engine must correspond to the exact document which always increases. The document used as the candidate for reference is characterized with the noun, and although a search engine functions by index-izing it, language is changing every day. Therefore, when index-ization is performed using a corpus, at least the quantity of a corpus will become huge and time will be wasted only by searching a word from a corpus. In this research, the dynamic dictionary used for coding is used, and since a noun is index-ized only in the character which exists in a document, index-ization of the noun which is not influenced by the age of language is attained.
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