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Jyutping can3
Pinyin chèn

Definitions (Unihan)
  1. lose baby teeth and get adult teeth
  2. Cangjie Input
    YUP

齔 [龀]

Jyutping
Pinyin chèn

Definitions (Wiktionary)
  1. character, literary
    to teethe, to lose baby teeth and get permanent teeth
    (syn.) 換奶齒, 齠齒, 替牙, 齔, 換齒, 褪齒, 換牙齒, 換牙, 蛻齒

齔 [龀]

Jyutping
Pinyin chèn

Definitions (CC-CEDICT)
  1. to replace the milk teeth