U+3328 "㌨" Square Nano Unicode Character
U+3328 "㌨" Square Nano is a CJK (Chinese, Japanese, and Korean) compatibility ideograph that represents the prefix "nano" in the context of scientific notation and measurement, specifically forming a square or composite character used in Japanese typography to denote the metric prefix for one billionth. This character is part of the "CJK Compatibility" block, which includes various precomposed forms for ease of representation in older character sets, and it is typically employed in technical or educational materials where the term "nano" is written as a single compact symbol rather than separate characters. Its usage reflects the historical need for space-saving text layouts in East Asian computing environments, though modern digital systems often render it as a distinct glyph for specific applications like unit abbreviations.
General Properties
| Code Point | U+3328 |
| Version Added | 1.1 |
| Name | Square Nano |
| Unicode 1.0 Name | Squared Nano |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "ナ" U+30CA Katakana Letter Na "ノ" U+30CE Katakana Letter No |
Encodings
| HTML Decimal Encoding | ㌨ |
| HTML Hex Encoding | ㌨ |
| UTF-8 Encoding | 0xE3 0x8C 0xA8 |
| UTF-16 Encoding | 0x3328 |
| UTF-32 Encoding | 0x00003328 |
| C/C++/Java Escape | \u3328 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ナ" U+30CA Katakana Letter Na "ノ" U+30CE Katakana Letter No |
| NFKC Simple Casefold | "ナ" U+30CA Katakana Letter Na "ノ" U+30CE Katakana Letter No |
| Script | Katakana |
| Script Extensions | Katakana |
| Indic Syllabic Category | Other |
| Vertical Orientation | Transformed Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Katakana |
| Sentence Break | Other |