U+21DF "⇟" Downwards Arrow with Double Stroke Unicode Character
Unicode Version 17.0
⇟
U+21DF "⇟" Downwards Arrow with Double Stroke is a typographic symbol that represents a downward direction with the added emphasis of a double vertical line through its shaft, distinguishing it from standard downward arrows. It belongs to the Arrows block in Unicode and is often used in technical diagrams, mathematical notation, or interface design to indicate a strong downward movement, descent, or a specific form of step-down action. The double stroke can imply increased force, stability, or a binary toggle, depending on the context, and it is not as commonly encountered as single-stroke arrows but serves a specialized role in precise visual communication.
General Properties
| Code Point | U+21DF |
| Version Added | 1.1 |
| Name | Downwards Arrow with Double Stroke |
| Unicode 1.0 Name | Down Arrow with Double Stroke |
| Block | Arrows |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⇟ |
| HTML Hex Encoding | ⇟ |
| UTF-8 Encoding | 0xE2 0x87 0x9F |
| UTF-16 Encoding | 0x21DF |
| UTF-32 Encoding | 0x000021DF |
| C/C++/Java Escape | \u21df |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |