SucceedsTilde[x, y, ...] displays as x \[SucceedsTilde] y \[SucceedsTilde] ....
SuchThat[x, y] displays as x \[SuchThat] y.
SupersetEqual[x, y, ...] displays as x \[SupersetEqual] y \[SupersetEqual] ....
Superset[x, y, ...] displays as x \[Superset] y \[Superset] ....
SuzukiGroupSuz[] represents the sporadic simple Suzuki group Suz.
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] ....