六ろく段だんろくだんMeanings1nounsixth dan; 6th danUsed in martial arts, go, shogi, and similar ranking systems to denote the sixth level of black belt or equivalent.彼かれは柔じゅう道どう六ろく段だんの腕うで前まえだ。He holds a sixth dan in judo.囲い碁ごで六ろく段だんを取とるのは難むずかしい。It's difficult to achieve sixth dan in go.
