飛び込む

1. Origins, structure, and basic meaning

• Structure: 飛び込む（とびこむ） combines 飛ぶ with 込む, which adds the sense of moving inward.
• Basic usage: It describes entering somewhere energetically or in a hurry.

2. Common pitfalls and similar expressions

• Movement according to the place
  • プールへ飛び込む describes jumping bodily into the water.
  • 喫茶店に飛び込む can mean rushing into a tearoom.