Asynchronous is an option for WolframAlpha that determines whether to use the asynchronous features of the Wolfram|Alpha API.
AutoMultiplicationSymbol is an option for objects such as Cell and Notebook that specifies whether to automatically display a multiplication symbol between numbers that would ...
BitNot
(Built-in Mathematica Symbol) BitNot[n] gives the bitwise NOT of the integer n.
Boxed
(Built-in Mathematica Symbol) Boxed is an option for Graphics3D that specifies whether to draw the edges of the bounding box in a three-dimensional picture.
BoxStyle is an option for three-dimensional graphics functions that specifies how the bounding box should be rendered.
CellAutoOverwrite is an option for Cell which specifies whether an output cell should be overwritten by new output when the preceding input cell is evaluated.
CellBaseline is an option for Cell which specifies where the baseline of the cell should be assumed to be when it appears inside another cell.
ColumnWidths is an option for the low-level function GridBox which specifies the widths to use for columns.
ControlsRendering is a Style option that specifies how controls should be rendered.
CopyDirectory["dir_1", "dir_2"] copies the directory dir_1 to dir_2.