This is a large Japanese dictionary whose entries are more than 300,000 including katakana words, ancient words, terminologies, word origins and history, idioms, etc. It's easy to find the word you are looking for through the digital format. It is regularly updated and revised to be kept abreast with the times.

Editorial supervisor: 松村　明
Editorial board: 池上秋彦・金田　弘・杉崎一雄・鈴木丹士郎・中嶋　尚・林　巨樹・飛田良文