途上

1. Origins, structure, and basic meaning

• Structure: The spelling is 途上, read とじょう, and it combines 途, meaning route or process, with 上, marking a position on it.
• Basic usage: 途上 means being in the course of development or physically on the way toward a destination.

2. Common pitfalls and similar expressions

• A stage of development and a point along a journey
  • Both examples use the form 途上. One is the abstract process of research not yet fully developed; the other is a physical route on which an old bridge is found.
• Research still developing and a bridge found en route
  • 研究はまだ発展の途上にある。 — The research is still developing.
  • 目的地へ向かう途上で古い橋を見つけた。 — We found an old bridge on the way to our destination.