左翼

1. Origins, structure, and basic meaning

• Structure: 左翼 (さよく) is a noun for the political left wing or the left wing of an aircraft.
• Basic usage: 左翼運動を考察する modifies a modern political movement, while 模型飛行機の左翼に傷 locates damage on the left wing of a model aircraft.

2. Common pitfalls and similar expressions

• Political faction and aircraft part
  • 左翼運動 is an ideological category, whereas 飛行機の左翼 is a physical part defined by direction. The latter carries no political position.