jīn
sharp
Duplication of 兂 (hairpin).
兂 Iconic component
zān
hairpin
Depicts a woman kneeling with a hairpin in her hair.
Bronze script
Seal script
Regular script
兓
Sound component in 2 characters (1 verified)
朁 蠶
Academia Sinica
Make Me a Hanzi
Unicode
說文解字
Wiktionary