航空便

1. Origins, structure, and basic meaning

• Structure: 航空便 is read as こうくうびん and means “air freight” and “flight”.
• Basic usage: It covers sending urgent freight by air and checking a flight’s scheduled arrival.

2. Common pitfalls and similar expressions

• 航空便で送る / 航空便の到着予定
  • In 航空便で送る it is a shipping method; in 航空便の到着予定 it denotes the flight or service itself.