Replying to @elithebearded@fed.qaz.red
Shoshana 🏳️⚧️@LilahTovMoon@tech.lgbt@w8emv That's officially known as "square", but they note:
In some countries an alternative term (e.g. "hash", "pound" or "number sign") may be necessary for this purpose, particularly where the form in Figure 4 is commonly used
— Open image attachment 1 of 2Square symbol with lines of equal length horizontal and vertical with overlaps at the ends
— Open image attachment 2 of 2Alternative square symbol with the vertical lines at an 80 degree angle rather than 90 degree