乗り込む

1. Origins, structure, and basic meaning

• Structure: 乗り込む, read のりこむ, combines 乗る, to ride, with 込む, movement into a space.
• Basic usage: It describes entering and boarding a boat or train; nearby expressions show whether people board in sequence or in haste.

2. Common pitfalls and similar expressions

• Destination particles
  • The examples use 船へ乗り込む and 列車に乗り込む; へ and に mark the vehicle entered.
• More than simply riding
  • The compound focuses on the act of entering and boarding rather than only on using a means of transport.