くう

空

表記・読み：くう

1. 1

   empty air; sky

   名詞
2. 2

   shunyata (the lack of an immutable intrinsic nature within any phenomenon); emptiness

   名詞Buddhism
3. 3

   air force

   名詞abbreviation
4. 4

   fruitlessness; meaninglessness

   名詞形容動詞
5. 5

   void (one of the five elements)

   名詞形容動詞
6. 6

   empty (e.g. set)

   nouns which may take the genitive case particle 'no'mathematics