Vietnamese

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Etymology

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Sino-Vietnamese word from 成熟, composed of and .

Pronunciation

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Adjective

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thành thục

  1. (chiefly biology) mature
    thành thục về tính ở động vậtsexual maturity in animals
  2. (by extension) proficient; well-trained (in a particular field)

Additional notes

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Not to be confused with thành thực.