油

1. Origins, structure, and basic meaning

• Structure: 油 (あぶら) is the noun oil used in cooking or lubrication.
• Basic usage: 油を引く spreads a thin layer in a frying pan, while 油を差す applies lubricant to gears.

2. Common pitfalls and similar expressions

• Cooking 油を引く and mechanical 油を差す
  • Both phrases use oil, but the conventional verb differs with the task: 引く for coating cookware and 差す for lubricating machinery.