空投
kōng​tóu

airdrop

空 kōng, kòng empty

Phonosemantic compound. 穴 represents the meaning and 工 represents the sound.

Components

穴
穴 Meaning component
xué, jué cave
工
工 Sound component
gōng work

Character Evolution

Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (1 of 6 verified)

控腔崆倥箜焢

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartkhuwngkʰˤoŋ hollow, empty; hole
khuwngXkʰˤoŋʔ hollow, empty; hole

說文解字

《說文》：“空，竅也。从穴，工聲。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

投 tóu throw

Phonosemantic compound. 扌 represents the meaning and 殳 represents the sound.

Components

扌
扌 Meaning component
shou, shǒu hand

扌 is a component form of 手.

殳
殳 Sound component
shū weapon or tool
Change in sound

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartduw[d]ˤo throw

說文解字

《說文》：“投，擿也。从手，从殳。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)