併せる

1. Origins, structure, and basic meaning

• Structure: 併せる(あわせる) means combining things or doing them together.
• Basic usage: It describes submitting documents together or bringing two events together.

2. Common pitfalls and similar expressions

• 併せる and 合わせる
  • 併せる focuses on grouping things or doing them together.
  • 合わせる is also widely used for matching or adjusting things such as size or timing, so the spelling depends on context.