Code point
U+2A06
Glyph appearance depends on your fonts.
U+2A06
SmU+2A06 N-ARY SQUARE UNION OPERATOR is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Supplemental Mathematical Operators block.
Choose the representation you need, then copy its value.
U+2A06
10758
⨆
⨆
⨆
E2 A8 86
2A06
00002A06
%E2%A8%86
\u2A06
\u2A06
\u2A06
\2A06