身

1. Origins, structure, and basic meaning

• Structure: 身 is read as み and is a noun for the body or the self that also forms many fixed expressions.
• Basic usage: Protecting oneself appears in 身を守る, while one's immediate surroundings appear in 身の回り.

2. Common pitfalls and similar expressions

• Meaning in fixed expressions
  • In 身を守る it denotes one's body or self, while in 身の回り it marks the nearby surroundings centered on oneself.
• Difference from 体
  • 体 directly denotes the physical body, while 身 also represents the self or one's circumstances and frequently appears in idiomatic combinations.