Play word 北海道東北開発公庫 北海道東北開発公庫 ほっかいどうとうほくかいはつこうこ Hokkaido-Tōhoku Development Finance Public Corporation
Play word 本開き 本開き ほんびらき functioning cuff buttons on a jacket (i.e. those that can be buttoned and unbuttoned)
Play word 嶺上開花 嶺上開花 リンシャンカイホウ winning hand formed by drawing a replacement tile after declaring a kong