灯油

1. Origins, structure, and basic meaning

• Structure: 灯油, read とうゆ, is kerosene, a refined petroleum fuel commonly used in heaters.
• Basic usage: It is labeled clearly on its dedicated container and purchased in preparation for winter heating.

2. Common pitfalls and similar expressions

• Kerosene used for heating
  • This is the fuel labeled in a container or purchased for winter heating. The kerosene and the container holding it are distinct.