A legendary collection of ancient books from the time of the Three Sovereigns (Fuxi, Shennong, and the Yellow Emperor); its specific contents are no longer known.

(literary) the five historical records of the ancient legendary rulers Shaohao, Zhuanxu, Ku, Yao, and Shun; often mentioned alongside the 三坟 sān​fén

(literary) ancient records or classical texts

(bound form) standard work of scholarship; classic book; collection of laws or rules