虚空 こくう Meanings Noun empty space; empty sky Kanji 虚 void. Read as コ. 空 sky. Read as クウ. Words containing 虚空 虚空蔵菩薩 (こくうぞうぼさつ) Akasagarbha (bodhisattva) 虚空蔵 (こくうぞう) Akasagarbha (bodhisattva) Jinuma: Japanese Dictionary · Word lists