結けつ団だん式しき

noun

ceremony marking the formation of an organization

Used for formal events where a new group, club, or team is officially launched.

• 新しん入にゅう生せいを迎むかえて、サークルの結けつ団だん式しきが行おこなわれた。

  A ceremony to mark the formation of the club was held to welcome new students.