二にの丸まるにのまるFreq.FrequencyTop 100,000Meanings1nounouter citadel; second baileyRefers to the second or outer compound of a Japanese castle, often containing residences and administrative buildings. Used in historical and architectural contexts.姫ひめ路じ城じょうの二にの丸まるには、かつて藩はん主しゅの御ご殿てんがあった。