段だん級きゅう制せいだんきゅうせいMeanings1noundan-kyu ranking systemA hierarchical ranking system using dan (段) and kyu (級) levels, commonly used in martial arts, board games like go and shogi, and other traditional disciplines.See also: 段 · 級柔じゅう道どうや囲い碁ごでは段だん級きゅう制