焦点

1. Origins, structure, and basic meaning

• Structure: 焦点, read しょうてん, combines convergence or focus 焦 with point 点, beginning as an optical term.
• Basic usage: カメラの焦点 is an optical focus, while 問題に焦点を絞る is the center of discussion.

2. Common pitfalls and similar expressions

• Distinguishing meanings
  • The figurative use means narrowing attention to one issue among several.