落葉

1. Origins, structure, and basic meaning

• Structure: 落葉 is read as らくよう and means “fallen leaves” and “leaf fall”.
• Basic usage: It refers to fallen leaves being gathered and the process of leaves beginning to fall as temperatures drop.

2. Common pitfalls and similar expressions

• 落葉を集める / 落葉が始まる
  • 落葉を集める treats leaves as objects, while 落葉が始まる names the process of leaf fall.