Direction is an option for Limit that specifies the direction in which the limit is taken.
FontColor is an option for Style, Cell, and related constructs that specifies the default color in which to render text.
FontVariations is an option for Style, Cell, and related constructs that specifies what font variations should be used.
MaxExtraBandwidths is an option to SmoothKernelDistribution that controls the behavior outside that data range.
None
(Built-in Mathematica Symbol) None is a setting used for certain options.
Red
(Built-in Mathematica Symbol) Red represents the color red in graphics or style specifications.
StabilityMarginsStyle is an option to frequency response plots such as BodePlot, NyquistPlot, and NicholsPlot that specifies the styles in which the gain and phase margins ...
SQLBinary[data] represents raw binary data that can be stored in a database.
x >= y or x >= y yields True if x is determined to be greater than or equal to y. x_1 >= x_2 >= x_3 yields True if the x_i form a non-increasing sequence.
x <= y or x <= y yields True if x is determined to be less than or equal to y. x_1 <= x_2 <= x_3 yields True if the x TraditionalForm\`i form a nondecreasing sequence.