Code point
U+223F
Glyph appearance depends on your fonts.
U+223F
SmU+223F SINE WAVE 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+223F
8767
∿
∿
∿
E2 88 BF
223F
0000223F
%E2%88%BF
\u223F
\u223F
\u223F
\223F