noun, verb · a military unit consisting of several regiments, or troops in general

这个步兵师正在进行野外演习。

noun, adjective · teacher, master, or a person with specialized skills or expertise

他打算拜那位有名的老中医为师。

noun · an exemplar, example, or something to be imitated

他的人格风范足以为师。

noun · surname Shi

师先生正在会议室等候您的到来。