尾行

1. Origins, structure, and basic meaning

• Structure: 尾行 is read as びこう and can mean “tailing” or “following secretly”, depending on context.
• Basic usage: The examples show a detective secretly following someone and a protagonist being tailed.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It focuses on secretly tracking someone without being noticed, not openly accompanying them or merely going the same way.