WORD TRANSLATION DEVICE, TRANSLATION METHOD, AND COMPUTER READABLE MEDIUM

A word translation device stores a first-language word search TRIE structure (100), a second-language word search TRIE structure (200), a first-language word information record (110), a second-language word information record (210) in a bilingual dictionary. The first-language word search TRIE structure (100) is provided for searching for words of the first language. The second-language word search TRIE structure (200) is provided for searching for words of the second language. The first-language word information record (110) includes first translation information for identifying a translation of each of the words stored in the first-language word search TRIE structure (100). The second-language word information record (210) includes second translation information for identifying a translation of each of the words stored in the second-language word search TRIE structure (200). By referring to the first and second word information records (110) and (210), word translation between the first and second languages can be performed with high precision at high speeds.