飛行

1. Origins, structure, and basic meaning

• Structure: 飛行 (ひこう) is a noun that also forms a する verb for flight through the air.
• Basic usage: It describes measuring a paper airplane's flight distance or observing a bird's flight and wing movement.
  • 紙飛行機の飛行距離を巻き尺で測りました。 — We measured the paper airplane's flight distance with a tape measure.
  • 鳥の飛行を観察して翼の動きを記録しました。 — We observed a bird's flight and recorded its wing movements.

2. Common pitfalls and similar expressions

• Flight and flight distance
  • 飛行 names the movement or process of flying, while 飛行距離 measures the distance covered by that flight.