(bound form) the three highest-ranking civil officials in the Han and Tang dynasties, including the Grand Commandant, Minister of Works, and Minister over the Masses; also called 三公 sān​gōng

(bound form) the three agencies handling national finances (Salt and Iron, Tax, and Census) from the late Tang to the Song dynasty

(bound form) the three top-level provincial offices during the Ming dynasty: the Provincial Administration Commission, the Provincial Surveillance Commission, and the Regional Military Commission

(bound form) the joint court comprising the Censorate, the Secretariat, and the Chancellery during the Tang dynasty, responsible for investigating legal cases involving injustice

(bound form) collective term for the three inner palace offices of the Crown Prince during the Tang dynasty (Sigui, Size, and Sizhuan)