clique / school / group / faction / to dispatch / to send / to assign / to appoint / pi (Greek letter Ππ) / the circular ratio pi = 3.1415926 / (loanword) pie
contrary / in reverse / inside out or upside down / to reverse / to return / to oppose / opposite / against / anti- / to rebel / to use analogy / instead / abbr. for 反切[fan3 qie4] phonetic system