土俵開きどひょうびらき Noun English jmdict 1 noun (common) (futsuumeishi) sumo opening ceremony for the new ring in a stable
開きひらき Common Noun English jmdict 1 noun (common) (futsuumeishi) opening;gap 2 suffix dried and opened fish 3 noun (common) (futsuumeishi) word usually written using kana alone go (game) extension usu. ヒラキ