単身

1. Origins, structure, and basic meaning

• Structure: 単身 is read as たんしん and can mean “alone” or “unaccompanied”, depending on context.
• Basic usage: The examples show a father going unaccompanied to a posting and rooms for single occupants.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It means unaccompanied: 単身で赴任する is going alone to a posting, and 単身者 is a person living alone.