Text Document creates a new text document.
AutoAction is an option for objects such as Slider, Locator, and Button that specifies whether they should automatically take action whenever the mouse pointer is over them, ...
CellChangeTimes is an option to Cell that specifies when changes were made to the cell.
ColorSlider[color] represents a color slider currently set to the color corresponding to color.ColorSlider[Dynamic[color]] uses the dynamically updated current value of ...
DifferentialD[x] displays as \[DifferentialD]x.
DirectoryStack[] gives the directory stack that represents the sequence of current directories used.
Exit
(Built-in Mathematica Symbol) Exit[] terminates a Mathematica kernel session.
LocalizeVariables is an option to Manipulate that determines whether the values of variables associated with controls should be localized.
None
(Built-in Mathematica Symbol) None is a setting used for certain options.
ShowSelection is an option to Notebook, Cell, and Style that specifies whether to show the current selection highlighted.