摩擦

1. Origins, structure, and basic meaning

• Structure: Written 摩擦 and read まさつ, it denotes physical resistance between contacting surfaces and figurative conflict between people or groups.
• Basic usage: It covers shoe soles gripping the ground and tension arising between departments with different roles.

2. Common pitfalls and similar expressions

• Physical force versus social conflict
  • In human relations it is a metaphor for tension, not literal contact between surfaces.