平城宮 へいじょうきゅう Meanings Noun Heijō Palace (imperial residence in Heijō-kyō) See also: 平城京 (へいじょうきょう). Kanji 平 flat. Read as ヘイ. 城 castle. Read as ジョウ. 宮 palace. Read as キュウ. Jinuma: Japanese Dictionary · Word lists