存続

1. Origins, structure, and basic meaning

• Structure: 存続 is read as そんぞく and is a noun and する verb for the continued existence or survival of a route, organization, event, or institution.
• Basic usage: Difficulty appears in 路線の存続が難しい, while deliberate preservation appears in 行事を存続させる.

2. Common pitfalls and similar expressions

• Intransitive and causative use
  • Use 存続する when something continues to exist and 存続させる when someone keeps it in existence.
• Difference from 継続
  • 継続 is continuation of an action or state generally; 存続 focuses on an entity maintaining its existence.