OverBar
(Built-in Mathematica Symbol) OverBar[expr] displays with a bar over expr.
ParentDirectory[] gives the parent of the current working directory. ParentDirectory["dir"] gives the parent of the directory dir.
PassEventsDown is an option to EventHandler which specifies whether events handled by a particular event handler should be passed down to event handlers nested inside.
Pause
(Built-in Mathematica Symbol) Pause[n] pauses for at least n seconds.
PrintingStyleEnvironment is an option for notebooks which specifies the style environment to be used in printing the notebook on paper.
RemoveAlphaChannel[image] removes all opacity information from image.RemoveAlphaChannel[image, c] removes opacity by blending all pixels with the background color c.
RenameFile["file_1", "file_2"] renames file_1 to file_2.
RightArrow[x, y, ...] displays as x \[RightArrow] y \[RightArrow] ....
ScriptMinSize is an option for Style that specifies the minimum font size to use in rendering subscripts, etc.
ScrollPosition is an option for Pane that specifies the scroll position of the contents of the pane.