noun (common) (futsuumeishi) word usually written using kana alone go (game) superko;special ko rule that handles reoccurring board positions like triple ko, eternal life etc.

noun (common) (futsuumeishi) Buddhism only applies to こう, ごう kalpa (eon, aeon)

noun (common) (futsuumeishi) word usually written using kana alone go (game) ko;position that allows for eternal capture and recapture of the same stones