Keycap: 0 emoji meaning

The keycap: 0 emoji displays the number "0" inside a square with rounded corners, designed to look like a keyboard key. This simple yet versatile emoji is commonly used to represent the concept of zero or nothing. It can also serve as a straightforward way to show the digit zero in phone numbers, codes, or other numerical contexts. The design reflects a virtual keycap, similar to what you might find on a keypad or keyboard.

The keycap: 0 emoji is also known as 0 Zero Emoji.

The keycap: 0 emoji was approved and added in Emoji 3.0, see related proposal L2/09026