JMdict: 2074820

空 【くう】

  1. [n] empty air; sky
  2. [n] shunyata (the lack of an immutable intrinsic nature within any phenomenon); emptiness
  3. [n] air force
  4. [n,adj-na] fruitlessness; meaninglessness
  5. [n,adj-na] void (one of the five elements)
  6. [adj-no] empty (e.g. set)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
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 1