peer

1. Origins, structure, and basic meaning

• Structure: The on reading is はい, and the kun reading is やから. It has 15 strokes and relates to senior and junior relationships within a group.
• Basic usage: 先輩 is read せんぱい, and 後輩 is read こうはい.

2. Common pitfalls and similar expressions

• 先輩 / 後輩
  • 先輩 means senior or upperclassman and is read せんぱい. It refers to someone senior in school, work, or experience.
  • 困ったときに助けてくれた先輩へ手紙を書いた。 means “I wrote a letter to someone senior to me who helped me when I was in trouble.”
  • 後輩 means junior (in school, work, or experience) and is read こうはい. It refers to someone junior by the same school, work, or experience relationship.
  • 部活の後輩に道具の手入れ方法を教えた。 means “I taught a junior club member how to care for the tools.”