空中楼閣 くうちゅうろうかく Meanings Noun castle in the air Kanji 空 sky. Read as クウ. 中 middle. Read as チュウ. 楼 lofty building. Read as ロウ. 閣 cabinet. Read as カク. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists