Fullwidth Left Square Bracket Letter
［ (fullwidth left square bracket) is a fullwidth bracket used to match CJK typography and alignment.
U+FF3B
［ is known as the fullwidth left square bracket (U+FF3B). It’s commonly used when you want brackets that visually match fullwidth CJK characters. You can copy it directly or use its HTML/CSS/JS escapes.
Fullwidth Left Square Bracket Letter Meaning
The symbol ［ is a fullwidth version of a left square bracket, designed to occupy the same visual width as typical fullwidth (CJK) characters. Unlike the basic ASCII “[”, this form helps keep text alignment consistent in documents and interfaces that mix or emphasize CJK typography. You may also see it in catalog-style formatting, quoted labels, or bracketed lists where fullwidth punctuation is preferred. In code and web contexts, it’s primarily used as a literal character—so the main “meaning” is its role as an opening bracket glyph rather than a specialized mathematical or logical operator.
Common uses
- •Matching CJK typography with fullwidth punctuation in Japanese/Chinese text
- •Using fullwidth brackets in document layouts where alignment must stay consistent
- •Formatting bracketed labels in UI strings (e.g., tagging items or sections)
- •Creating bracket-style separators in menus, help text, or headings
- •Copying the exact glyph into styled text where ASCII brackets look misaligned
Examples
［ Fullwidth Left Square Bracket (U+FF3B)
- ［［注意］本文をご確認ください。
- ［［商品名］サンプルセット
- ［在庫リスト［A-01］を開く
- ［分類［書籍］：新着
- ［リンク：［詳細を見る］
Variations
Technical codes
| Unicode | U+FF3B | |
| HTML Entity | ［ | |
| HTML Code | ［ | |
| CSS | \FF3B |
FAQ
What does the Fullwidth Left Square Bracket letter mean?
The symbol ［ is a fullwidth version of a left square bracket, designed to occupy the same visual width as typical fullwidth (CJK) characters. Unlike the basic ASCII “[”, this form helps keep text alignment consistent in documents and interfaces that mix or emphasize CJK typography. You may also see it in catalog-style formatting, quoted labels, or bracketed lists where fullwidth punctuation is preferred. In code and web contexts, it’s primarily used as a literal character—so the main “meaning” is its role as an opening bracket glyph rather than a specialized mathematical or logical operator.