設立

1. Origins, structure, and basic meaning

• Structure: 設立 (せつりつ) combines setting up 設 and establishing 立 to denote founding an organization.
• Basic usage: It applies to residents creating a reading group and assigning roles needed for its operation.

2. Common pitfalls and similar expressions

• Organized founding rather than a casual gathering
  • 設立する creates an ongoing body with a purpose and structure, not just a one-time meeting.