空で そらで Meanings Expression off the top of one's head; from thin air from memory Kanji 空 sky. Read as そら. Words containing 空で 空で言う (そらでいう) to speak from memory 空で読む (そらでよむ) to recite from memory 空で歌う (そらでうたう) to sing from memory And 1 more. Jinuma: Japanese Dictionary · Word lists