RightVectorBar[x, y, ...] displays as x\[RightVectorBar]y\[RightVectorBar]....
Saveable is an option for notebooks that specifies whether a notebook can be saved.
Shortest[p] is a pattern object that matches the shortest sequence consistent with the pattern p.
ShortLeftArrow[x, y, ...] displays as x \[ShortLeftArrow] y \[ShortLeftArrow] ....
ShortRightArrow[x, y, ...] displays as x \[ShortRightArrow] y \[ShortRightArrow] ....
SmallCircle[x, y, ...] displays as x\[SmallCircle]y\[SmallCircle]....
SpanFromLeft is a symbol that can appear at a particular position in a Grid or related construct to indicate that the corresponding position is occupied by a spanning element ...
SpanLineThickness is an option for selections that specifies the thickness in printer's points of line-spanning characters such as \[Backslash][VerticalLine] and ...
SpanMaxSize is an option for selections that specifies the maximum size of spanning characters such as parentheses and brackets.
SpanMinSize is an option for selections that specifies the minimum size of spanning characters such as parentheses and brackets.