PURPOSE: To easily obtain proper reading and Chinese characters (KANJI) by providing the dictionary equipped with a family name reading part, name reading part, family name word part and name word part and arranged while being divided for each number of characters.

CONSTITUTION: A family name reading part 2 stores KANJI 'Nakamura' constituting a family name in respect to reading 'Nakamura', for example, a name reading part 3 stores KANJI 'Taro' constituting a name in respect to reading 'Taro', for example, a family name word part 4 stores 'Nakamura' constituting the reading in respect to the KANJI 'Nakamura' and a name word part 5 stores 'Taro' constituting the reading in respect to the KANJI 'Taro' respectively correspondently. For example, when the reading of 'Nakamufu' is recognized as one candidate, the part of 'reading composed of four characters' is investigated in the family name reading part 2, and it is discriminated that any family name having the reading of 'Nakamufu' does not exist but the reading of 'Nakamura' exists. Further, the KANJI corresponding to 'Nakamura' is investigated among several candidates.