くう

Noun

1. empty air; sky

警棒 けいぼう そらをなぐりつけ、よろめいて体勢 たいせいをたてなおしたガードマンは、自分 じぶん かって突進 とっしんしてくる金網 かなあみづくりのクズカゴを た。
kēbōde sorao naguritsuke yoromeite taisēo tatenaoshita gādomanwa jibunni mukatte tosshin shite kuru kanāmizukurino kuzukagō mita.
The guard's truncheon hit air. Off balance, he regained his posture to see a metal-mesh rubbish bin flying towards him.
Noun

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

Buddhism
Noun

3. air force

Abbreviation
Related to 空軍
Noun
na-Adjective

4. fruitlessness; meaninglessness

Noun
na-Adjective

5. void (one of the five elements)

Related to 五大
no-Adjective

6. empty (e.g. set)

Mathematics