通す

1. Origins, structure, and basic meaning

• Structure: 通す (とおす) adds okurigana す to passage 通, forming a transitive verb.
• Basic usage: It describes passing thread through a hole and carrying a position through despite opposition.

2. Common pitfalls and similar expressions

• Physical passage and figurative insistence
  • A hole supplies the literal route, while 主張を通す means maintaining and securing acceptance of a position.