JMdict: 1245390

空で 【そらで】

  1. [exp] off the top of one's head; from thin air
  2. [exp] from memory
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
空 Empty, Sky, Void, Vacant, Vacuum クウ そら, あ.く, あ.き, あ.ける, から, す.く, す.かす, むな.しい