# U+0015 NEGATIVE ACKNOWLEDGE

A control in the Basic Latin block.

| | |
|---|---|
| Codepoint | U+0015 |
| Name | NEGATIVE ACKNOWLEDGE |
| Also known as | NAK, NEGATIVE ACKNOWLEDGE |
| Block | [Basic Latin](https://unicodekit.com/block/basic-latin) |
| Script | Common |
| Category | Control (Cc) |
| Unicode version | 1.1 |
| HTML | `` `` |
| CSS | `\15` |
| JavaScript | `\u0015` |
| UTF-8 | 15 |
| UTF-16 | 0015 |

## Related characters

- [U+0014 DEVICE CONTROL FOUR](https://unicodekit.com/char/0014)
- [U+0016 SYNCHRONOUS IDLE](https://unicodekit.com/char/0016)
- [U+0013 DEVICE CONTROL THREE](https://unicodekit.com/char/0013)
- [U+0017 END OF TRANSMISSION BLOCK](https://unicodekit.com/char/0017)
- [U+0012 DEVICE CONTROL TWO](https://unicodekit.com/char/0012)
- [U+0018 CANCEL](https://unicodekit.com/char/0018)
- [U+0011 DEVICE CONTROL ONE](https://unicodekit.com/char/0011)
- [U+0019 END OF MEDIUM](https://unicodekit.com/char/0019)
- [U+0010 DATA LINK ESCAPE](https://unicodekit.com/char/0010)
- [U+001A SUBSTITUTE](https://unicodekit.com/char/001A)
- [U+000F LOCKING-SHIFT ZERO](https://unicodekit.com/char/000F)
- [U+001B ESCAPE](https://unicodekit.com/char/001B)

Page: https://unicodekit.com/char/0015 · JSON: https://unicodekit.com/characters/0015