斤

1. Origins, structure, and basic meaning

• Structure: Written 斤 and read きん, it serves as a counter for a loaf of bread and as a traditional unit of weight.
• Basic usage: It appears when buying one loaf and in an old ledger recording wheat by the historical unit.

2. Common pitfalls and similar expressions

• Unit depends on the object and context
  • Modern bread counting and traditional weight measurement are distinct uses and should not be assumed numerically identical.