CJK Unified Ideograph-9F86

It marks a child's change from milk teeth to adult teeth.

龆 is a phonosemantic character: 齿 carries the tooth sense, while 召 carries the sound. Its role is lexical, naming a childhood milestone rather than acting as a symbol or reaction.

As of September 2026, the sources checked here do not establish an earlier oracle-bone or bronze ancestor. The earliest textual source located is the classical Han Shi Wai Zhuan, which uses 龆齿 for a child's new permanent teeth; later use extends the term to childhood.

Chinese and Japanese dictionary traditions keep the same path from tooth change to youth. 龆发 can refer to a child's hanging hair or the child with it, linking this use to 髫. To type it, enter tiao and choose 龆; traditional-character input selects 齠.

龆 vs 齠: which one is right?

Both are right; 龆 is simplified and 齠 is traditional.

They are corresponding forms, not different meanings. If a copied passage uses 齠, the glyph reflects its writing standard. 龀 is a close tooth-change neighbor: 龆 and 龀 appear together in 龆龀, the established expression for childhood or the tooth-changing age.

龆能单独用吗

Use it as a word, not as a reaction.

A standalone 龆 leaves the intended phrase unstated. In a message, compounds such as 龆龀, 龆年, and 龆发 give the reader the lexical frame. As of September 2026, no separate emoji-style convention surfaced in the sources checked.