the Three Religions (Daoism, Confucianism, Buddhism)
(TCM) the three truncal cavities (thoracic, abdominal and pelvic), known as the "triple heater" or "San Jiao"
abbr. for 三自愛國教會|三自爱国教会[sān zì ài gúo jiào hùi], Three-Self Patriotic Movement
variant of 三焦[san1 jiao1]
the Three Doctrines (Daoism, Confucianism, Buddhism)