The , or the Sankoku (ä¸Âå½) for short, is a general-purpose Japanese dictionary. It is closely affiliated with another contemporary dictionary published by Sanseidà Â, the Shin Meikai kokugo jiten.
Japanese linguist and lexicographer Kenbà  Hidetoshi (è¦ÂÃ¥ÂÂ豪ç´Â, 1914-1992) was chief editor of the first four editions. Among his prominent coeditors, Kindaichi Kyà Âsuke (éÂÂç°ä¸Â京å©, 1882-1971), his son Kindaichi Haruhiko (éÂÂç°ä¸ÂæÂ¥å½¦, 1913-2004), and Yamada Tadao (å±±ç°忠éÂÂ, 1916-1996) began with the 1st edition; Shibata Takeshi (æÂ´ç°æÂ¦) with the 2nd; Hida Yoshifumi (é£Âç°è¯æÂÂ) with the 4th; and Ichikawa Takashi (å¸Âå·ÂÃ¥ÂÂ) began editing with the 5th edition Sanseidà  kokugo jiten. Several of these lexicographers worked together on a predecessor Sanseido dictionary, the Meikai kokugo jiten (æÂÂè§£å½èªÂè¾Âå ¸). Kenbà  began working with its chief editor Kindaichi Kyà Âsuke on the 1st edition (1943) and was an editor on the 2nd edition (1952).
In 1959, Sanseido placed Kenbà  in charge of the Sanseidà  kokugo jiten, and subsequently put Yamada in charge of the comparatively larger Shin Meikai kokugo jiten (1972 ⦠2005). The 1st edition Sanseidà  kokugo jiten (1960) had 57,000 headwords, while the 2nd-5th editions increased the numbers to 62,000 (1974), 65,000 (1982), 73,000 (1992), and 76,000 (2001) respectively.
Emphasizing contemporary usage is one of Sanseidà  kokugo jitens most significant contributions to modern Japanese lexicography. Many traditional Japanese dictionaries copy usage examples from earlier dictionaries, often taken from Classical Japanese language sources. When Kenbà  Hidetoshi began compiling the 1st edition, he started collecting Japanese word usages from newspapers, magazines, and broadcasts, which he would write on cards. By the time he died, he had recorded some 1,400,000 usage example cards.
The Sanseidà  kokugo jiten is known for including neologisms, katakana loanwords, and informal expressions. Tom Gally, a Japanese translator and lexicographer, gives this evaluation:
<blockquote>Like the other Sanseidou dictionaries, this one has a strong contemporary emphasis and shows the influence of its late editor's renowned citation collecting. The entries include many colloquialisms that were missed or ignored by other lexicographers.</blockquote>
The Sanseidà  kokugo jiten has been revised about once a decade.