接続

1. Origins, structure, and basic meaning

• Structure: 接続 is read as せつぞく and is a noun or する verb for a connection between devices or transport services.
• Basic usage: Devices use ケーブルを端子に接続する, while transit uses 急行列車への接続.

2. Common pitfalls and similar expressions

• Item and endpoint
  • を marks the cable being connected and に marks the terminal that receives it.
• Transit connection
  • 接続がよい means that onward transfer to the express is convenient, not only that physical track is joined.