Code point
U+2216
Glyph appearance depends on your fonts.
U+2216
SmU+2216 SET MINUS is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Mathematical Operators block.
Choose the representation you need, then copy its value.
U+2216
8726
∖
∖
∖
E2 88 96
2216
00002216
%E2%88%96
\u2216
\u2216
\u2216
\2216