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Jyutping taan2
Pinyin dǎn

Definitions (Unihan)
  1. sincere
  2. real, true
  3. truth
  4. Cangjie Input
    YWRM

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Jyutping daan6
Pinyin dàn

Definitions (Wiktionary)
  1. character, obsolete
    big
  2. character, obsolete
    thick; thicken; alternative form of 單/单
  3. character
    a surname
  4. character, obsolete, of grains
    plenty
  5. character, literary
    sincere, truthful

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Jyutping daan6
Pinyin dǎn

Definitions (CC-CEDICT)
  1. surname Dan
  2. sincere
Definitions (Wiktionary)
  1. character, obsolete
    big
  2. character, obsolete
    thick; thicken; alternative form of 單/单
  3. character
    a surname
  4. character, obsolete, of grains
    plenty
  5. character, literary
    sincere, truthful