Precedes[x, y, ...] displays as x \[Precedes] y \[Precedes] ....
RightArrow[x, y, ...] displays as x \[RightArrow] y \[RightArrow] ....
SaveAutoDelete is an option for ErrorBox objects that specifies whether the ErrorBox is automatically deleted when the notebook containing it is saved.
Square
(Built-in Mathematica Symbol) Square[x] displays as \[Square]x.
SubscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for SubscriptBox objects.
SubStar
(Built-in Mathematica Symbol) SubStar[expr] displays as expr_*.
SubsuperscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for SubsuperscriptBox objects.
SuperDagger[expr] displays as expr^\[Dagger].
SuperMinus[expr] displays as expr^-.
SuperPlus[expr] displays as expr^+.