貞じょう応おうじょうおうMeanings1nounJōō era (1222.4.13-1224.11.20)A Japanese era name (年号) from the Kamakura period. Used in historical contexts.貞じょう応おうの頃ころ、鎌かま倉くら幕ばく府ふは北ほう条じょう氏しが実じっ権けんを握にぎっていた。During the Jōō era, the Hōjō clan held real power in the Kamakura shogunate.