HSK10+
zhá
sluice
Phonosemantic compound. 門 represents the meaning and 甲 represents the sound.
門 Meaning component
mén
door
甲 Sound component
jiǎ
1st heavenly stem, fingernail
Seal script
Clerical script
Regular script
闸 (閘)
sluice; flood gate, canal lock; gear; brake; lock (on waterway); electric switch or circuit breaker
闸
gear
闸门
sluice gate
电闸
electric switch
气闸
airlock
闸口
open sluice gate
Academia Sinica
Make Me a Hanzi
Unicode
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing