Nihon Kokugo Daijiten

The Nihon kokugo daijiten (日本国語大辞典), often abbreviated as the Nikkoku (日国) and sometimes known in English as Shogakukan's Japanese Dictionary, is the largest Japanese language dictionary published.^[1] In the period from 1972 to 1976, Shogakukan published the 20-volume first edition. The 14-volume second edition was published in the period from November 2000 to December 2001. It includes substantial additions to and improvements over the first edition.^[2]