挟み込む

1. Origins, structure, and basic meaning

• Structure: Spelling: 挟み込む. Reading: はさみこむ. Core meaning: to insert between; to sandwich.
• Basic usage: Representative examples: 書類の間に小さなメモを挟み込んだ / 二枚の板の間に薄いゴムを挟み込む.

2. Common pitfalls and similar expressions

• Inserting versus becoming caught
  • 挟み込む is a transitive verb for intentionally inserting a note, rubber sheet, or other item between two things. Distinguish it from intransitive 挟まる, becoming caught between objects.