zhá

sluice

Phonosemantic compound. represents the meaning and represents the sound.

Components
門 meaning component

  Meaning component

mén

  

door

甲 sound component

  Sound component

jiǎ

  

1st heavenly stem, fingernail

Evolution

閘 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
閘 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
閘 Seal script Western Han dynasty (202 BC-9 AD)

Seal script

Western Han dynasty (202 BC-9 AD)
閘 Regular script Modern

Regular script

Modern
Definitions

() 

zhá

sluice; flood gate, canal lock; gear; brake; lock (on waterway); electric switch or circuit breaker

Most common words with 閘
Freq.
Word
Meaning

gear

闸门

sluice gate

电闸

electric switch

气闸

airlock

闸口

open sluice gate