accompany · companion

1. Origins, structure, and basic meaning

• Structure: The verb 伴う, read ともなう, means to accompany or for something to come with another thing.
• Basic usage: 仕事に責任が伴う means that responsibility comes with a job, so the verb is not limited to people traveling together.

2. Common pitfalls and similar expressions

• One change accompanying another
  • 成長に伴って変わる means to change as growth occurs.
  • The expression connects the changes but does not guarantee an exact numerical proportion.
• Going together and musical accompaniment
  • 同伴, read どうはん, concerns going with a person; 伴奏, read ばんそう, means musical accompaniment.
  • English accompaniment can describe both, but 保護者同伴 and ピアノ伴奏 belong to different contexts.