Code point
U+2354
Glyph appearance depends on your fonts.
U+2354
SoU+2354 APL FUNCTIONAL SYMBOL QUAD DEL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+2354
9044
⍔
⍔
E2 8D 94
2354
00002354
%E2%8D%94
\u2354
\u2354
\u2354
\2354