GraphComplement[g] gives the graph complement of the graph g.
GraphHighlight is an option to Graph and related objects that specifies graph elements to highlight.
GraphicsGroup[{g_1, g_2, ...}] represents a collection of graphics objects grouped together for purposes of interactive selection in a notebook.
HoldAllComplete is an attribute which specifies that all arguments to a function are not to be modified or looked at in any way in the process of evaluation.
HoldFirst is an attribute which specifies that the first argument to a function is to be maintained in an unevaluated form.
Kernels
(Built-in Mathematica Symbol) Kernels[] gives the list of running kernels available for parallel computing.
LabelingFunction is an option for charting functions that specifies a function to apply to determine labeling of chart elements.
LaplacianGaussianFilter[image, r] convolves image with a Laplacian-of-Gaussian kernel of pixel radius r.LaplacianGaussianFilter[image, {r, \[Sigma]}] convolves image with a ...
Magnification is an option for Style and Cell that specifies what magnification to use for display.
MorphologicalBinarize[image, {t_1, t_2}] creates a binary image from image by replacing all values above the upper threshold t_2 with 1, also including pixels with ...