Meaning and Usage
The word "桁" (けた) primarily refers to a "digit" in numbers, indicating the place value such as ones, tens, hundreds, etc. It is commonly used when talking about the size or scale of numbers, for example, "三桁" means "three digits."
Besides numbers, "桁" also means a "beam" or "girder" in construction, referring to the horizontal support structures in buildings.
Common Collocations
- 三桁 (さんけた): three digits, used to describe numbers with three digits.
- 一桁違う (ひとけたちがう): differ by one digit, often used to express a large difference in quantity or scale.
- 太い桁 (ふといけた): thick beam, used in construction contexts.
Usage Notes
When using "桁" to talk about numbers, it often appears with counters like "三桁" or "四桁" to specify the number of digits. This helps emphasize the scale or magnitude of the number.
In construction, "桁" is a technical term and is used in more formal or specialized contexts.
A common learner mistake is confusing "桁" with "数字" (number) or "位" (place value). "桁" specifically refers to the digit place or beam, not the number itself.