Keyboard key with rounded corners and the number 0 in the middle. The freezing point of water. Someone gets from naught to sixty!
The keycap: 0 emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the symbols
category. Because the keycap: 0 emoji has been around for quite some time, it should display correctly in the majority of operating systems.