滞留

1. Origins, structure, and basic meaning

• Structure: 滞留 is read as たいりゅう and means remaining or accumulating in one place.
• Basic usage: It can describe backed-up vehicles near a station or smoke accumulating near a ceiling.

2. Common pitfalls and similar expressions

• Vehicles being held up
  • 滞留している describes vehicles gathered in one place and unable to move freely. Example: 事故の影響で駅前に車が滞留している。
• Smoke accumulating
  • 滞留した means that smoke remained near the ceiling instead of clearing. Example: 換気を止めると煙が天井付近に滞留した。