桁

1. Origins, structure, and basic meaning

• Structure: 桁 (けた) is a single-character noun read けた with the senses “digit place” and “crossbeam.”
• Basic usage: It can identify a position in a number or a structural beam supporting a roof.

2. Common pitfalls and similar expressions

• Numeric and architectural senses
  • Amounts and entries indicate the digit sense, whereas carpentry and roof support indicate the beam sense.