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Jyutping tong4 co1 sei3 daai6 gaa1
Pinyin táng chū sì dà jiā

Definitions (CC-CEDICT)
  1. Four Great Calligraphers of early Tang
  2. refers to Yu Shinan 虞世南[Yu2 Shi4 nan2], Ouyang Xun 歐陽詢|欧阳询[Ou1 yang2 Xun2], Chu Suiliang 褚遂良[Chu3 Sui4 liang2] and Xue Ji 薛稷[Xue1 Ji4]