zhì
stop up
Phonosemantic compound. 穴 represents the meaning and 至 represents the sound.
Evolution

Seal script
Shuowen (~100 AD)
Clerical script
Qin dynasty (221-206 BC)
Clerical script
Western Han dynasty (202 BC-9 AD)Regular script
ModernDefinitions
Component uses
Sound component in 1 character (0 verified)
Sources