↩
Left Arrow With Hook
- Unicode
- U+21A9
- Category
- Arrows
- HTML Entity
- ↩
- CSS
- \21A9
The Left Arrow With Hook (↩) features a standard left-pointing arrow that curves upwards into a hook at its base. Originally introduced in Unicode to represent a carriage return or line break in typography, it has evolved into a ubiquitous digital icon. Today, you will most frequently see it serving as the standard "reply" button on social media platforms, email clients, and messaging apps, or occasionally as an "undo" action.
How to Type
- Windows
- Win + . then search "reply"
- macOS
- Control + Command + Space then search "reply"
- Linux
- Ctrl + Shift + U then 21A9
- HTML
- ↩ or ↩
In Programming
In mathematical typesetting systems like LaTeX, this symbol is generated using `\hookleftarrow` and is often used in category theory to denote an injective function or inclusion map. In technical documentation, it occasionally indicates a hard line break or a function's return value.
Tags
arrow
back
carriage return
email reply
hook left
line break
reply button
return
social media reply
undo
unicode arrows