一斗缶

1. Origins, structure, and basic meaning

• Structure: In 一斗缶 (いっとかん), capacity 一斗 and can 缶 combine to name an approximately 18-liter can.
• Basic usage: 一斗缶 is the established name for a square metal can of about 18 liters.

2. Common pitfalls and similar expressions

• A container name including capacity
  • It denotes the container itself, not merely a numerical amount of its contents.