HSK3
kōng, kòng
empty
Phonosemantic compound. 穴 represents the meaning and 工 represents the sound.
穴 Meaning component
xué
cave
工 Sound component
gōng
work
Bronze script
Seal script
Clerical script
Regular script
空
kōng
empty, hollow, bare, deserted; empty; air; sky; in vain
kòng
to empty; vacant; unoccupied; space; leisure; free time
空间
space
空气
air
航空
aviation
天空
sky
Sound component in 6 characters (1 verified)
控 腔 崆 倥 箜 焢
Academia Sinica
Make Me a Hanzi
Unicode
Baxter-Sagart
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing
漢語多功能字庫