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Jyutping juk6 jam1
Pinyin yù yīn

Definitions (Wiktionary)
  1. noun, honorific
    "your beautiful words" (to refer to a received message)
  2. noun, historical
    speech of the emperor
  3. noun, literary
    beautiful sound; wonderful voice
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)

玉音 [--]

Jyutping
Pinyin yù yīn

Definitions (CC-CEDICT)
  1. (deferential) your letter