師弟

1. Origins, structure, and basic meaning

• Structure: 師弟 (してい) is a noun for the teacher-disciple relationship or the pair participating in it.
• Basic usage: 師弟の関係にある predicates a long-standing instructional bond, while 師弟で舞台に立つ has teacher and disciple perform together as a pair.

2. Common pitfalls and similar expressions

• Relationship label and paired participants
  • 師弟の関係 names the bond, whereas 師弟で groups the two participants as actors. The term differs from ordinary colleagueship.