笄

Glyph origin
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Definitions

 * 1)  hairpin of women
 * 2)  to become an adult at age 15 and start wearing a hairpin

Noun

 * 1) tapered hair-pin with a flat end used to put up hair
 * 2) square hair stick used as a structural element in women's hairstyles
 * 3) a sword accessory in the shape of a tapered hair-pin, used as a grooming tool