clear help

空 

Stroke count: 8
Meanings: empty, sky, void, vacant, vacuum
Readings: あ.き, あ.く, あ.ける, うつ, から, き, く, クウ, す.かす, す.く, そら, むな.しい

Vocab lookup:

Level 4 vocabulary
空	(n) emptiness/ (P)
Level 3 vocabulary
空く	(v5k,vi) (1) to open/ to become open/ to become empty/ (2) to be less crowded/ (P)
空気	(n) air/ atmosphere/ (P)
空港	(n) airport/ (P)
空く	(v5k,vi) (1) to open/ to become open/ to become empty/ (2) to be less crowded/ (P)
Level 2 vocabulary
架空	(adj-na,adj-no,n) aerial/ overhead/ fiction/ fanciful/ (P)
空っぽ	(adj-na,n) empty/ vacant/ hollow/ (P)
空想	(n) daydream/ fantasy/ fancy/ vision/ (P)
空中	(n) sky/ air/ (P)
航空	(n) aviation/ flying/ (P)
真空	(adj-na,n) vacuum/ hollow/ empty/ (P)
Level 1 vocabulary
空ろ	(adj-na,n) blank/ cavity/ hollow/ empty (space)
大空	(n) heaven/ firmament/ the sky/ (P)
空間	(n) space/ room/ airspace/ (P)
空腹	(adj-na,n) hunger/ (P)
上空	(n) sky/ the skies/ high-altitude sky/ upper air/ (P)
空しい	(adj) vacant/ futile/ vain/ void/ empty/ ineffective/ lifeless/ (P)

help