What 🗙 means
On a control, it closes or abandons the current step. This X mark is a button label.
Early-modern English records used a cross as a personal mark instead of a signature. X in mathematics is documented by 1618; English mathematician William Oughtred used it in a 1631 book. A U.S. postal rule in 1847 specified a pen X to cancel stamps. These predate this character.
Neutral and functional; beside a control it reads as an instruction.
For serious cancellations, name the action.
Don't confuse it with
1Questions people ask
1Why is 🗙 a box?
A font or encoding failure can hide it; check both and use UTF-8.
How to type 🗙
🗙\1F5D9Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

