空 (hung1) — sky; space; air in Cantonese
hungˉ¹空Mandarin Pinyin: kong1
Meaning of 空
nounsky; space; air
nounimpractical; lacking substance
nounempty; hollow; void
nounfor nothing; in vain; fruitless
noun(noun) 1. free (in time); (adjective) unoccupied