Equilibrium[x, y, ...] displays as x \[Equilibrium] y \[Equilibrium] ....
ErrorBox[boxes] is a low-level box construct that represents boxes that cannot be interpreted in input or output.
FileType["file"] gives the type of a file, typically File, Directory, or None.
ForwardBackward is a symbol that represents alternate forward and backward motion or animation.
Forward
(Built-in Mathematica Symbol) Forward is a symbol that represents the forward direction for purposes of motion and animation.
GreaterFullEqual[x, y, ...] displays as x \[GreaterFullEqual] y \[GreaterFullEqual] ....
GreaterGreater[x, y, ...] displays as x \[GreaterGreater] y \[GreaterGreater] ....
GreaterLess[x, y, ...] displays as x \[GreaterLess] y \[GreaterLess] ....
GreaterSlantEqual[x, y, ...] displays as x \[GreaterSlantEqual] y \[GreaterSlantEqual] ....
GreaterTilde[x, y, ...] displays as x \[GreaterTilde] y \[GreaterTilde] ....