U+2033 "″" Double Prime Unicode Character
Unicode Version 17.0
″
U+2033 "″" Double Prime is a typographic symbol typically representing inches, arcseconds, or a secondary mark in mathematical and scientific notation, and it is distinct from the quotation mark due to its specific design and function. In typography, it appears as two short parallel strokes raised above the baseline, often used in pairs with the prime symbol for feet to denote minutiae of measurement. Its usage extends to contexts such as coordinate systems where it marks seconds of longitude or latitude, and it is encoded separately in Unicode to preserve this specialized meaning across digital text and fonts.
General Properties
| Code Point | U+2033 |
| Version Added | 1.1 |
| Name | Double Prime |
| Block | General Punctuation |
| General Category | Other Punctuation |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | European Terminator |
| Decomposition Type | Compat |
| Decomposition Mapping | "′" U+2032 Prime "′" U+2032 Prime |
Encodings
| HTML Decimal Encoding | ″ |
| HTML Hex Encoding | ″ |
| UTF-8 Encoding | 0xE2 0x80 0xB3 |
| UTF-16 Encoding | 0x2033 |
| UTF-32 Encoding | 0x00002033 |
| C/C++/Java Escape | \u2033 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Postfix Numeric |
| East Asian Width | Ambiguous |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "′" U+2032 Prime "′" U+2032 Prime |
| NFKC Simple Casefold | "′" U+2032 Prime "′" U+2032 Prime |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Math | Yes |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |