SucceedsTilde[x, y, ...] displays as x \[SucceedsTilde] y \[SucceedsTilde] ....
SuchThat[x, y] displays as x \[SuchThat] y.
SuzukiGroupSuz[] represents the sporadic simple Suzuki group Suz.
SyntaxInformation[f] gives information used to generate syntax coloring and other advisories when f[...] is entered as input.
Therefore[x, y] displays as x \[Therefore] y.
ThompsonGroupTh[] represents the sporadic simple Thompson group Th.
TildeEqual[x, y, ...] displays as x \[TildeEqual] y \[TildeEqual] ....
TildeFullEqual[x, y, ...] displays as x \[TildeFullEqual] y \[TildeFullEqual] ....
Tilde
(Built-in Mathematica Symbol) Tilde[x, y, ...] displays as x \[Tilde] y \[Tilde] ....
TildeTilde[x, y, ...] displays as x \[TildeTilde] y \[TildeTilde] ....