同伴

1. Origins, structure, and basic meaning

• Structure: In 同伴 (どうはん), together 同 and companion 伴 combine to denote accompaniment.
• Basic usage: 同伴 means accompanying another person to the same destination or event.

2. Common pitfalls and similar expressions

• Accompaniment rather than coincidence
  • Merely being in the same place by coincidence is not enough; context supplies the companion relation.