SubStar (Built-in Mathematica Symbol)

SubStar[expr] displays as expr_*.

SuperDagger (Built-in Mathematica Symbol)

SuperDagger[expr] displays as expr^\[Dagger].

SuperMinus (Built-in Mathematica Symbol)

SuperMinus[expr] displays as expr^-.

SuperPlus (Built-in Mathematica Symbol)

SuperPlus[expr] displays as expr^+.

SuperStar (Built-in Mathematica Symbol)

SuperStar[expr] displays as expr^*.

UnderBar (Built-in Mathematica Symbol)

UnderBar[expr] displays with a bar under expr.

Underlined (Built-in Mathematica Symbol)

Underlined represents an underlined font.

WordBoundary (Built-in Mathematica Symbol)

WordBoundary represents a boundary between words for purposes of matching in StringExpression.

$CommandLine (Built-in Mathematica Symbol)

$CommandLine is a list of strings giving the elements of the original operating system command line with which Mathematica was invoked.

WeatherData (Built-in Mathematica Symbol)

WeatherData[loc, " property"] gives the most recent measurement for the specified weather property at the location corresponding to loc.WeatherData[loc, " property", date] ...