1.
square brackets
The punctuation marks [ ] used to enclose editorial insertions, phonetic transcriptions, or technical notations.
Composed of 角 (angle, corner) + 括弧 (brackets). The standard term for square brackets [ ] in Japanese. Less common in general Japanese writing than 丸括弧 (parentheses), but frequently used in academic, technical, and programming contexts.
Common collocations
- 角括弧で囲む: to enclose in square brackets
- 角括弧内: inside the square brackets
- 角括弧を付ける: to add square brackets
Usage
- Academic papers: editorial insertions in quotations
- Linguistics: phonetic transcriptions
- Programming: array access, optional parameters
- Dictionaries: supplementary information