ControllerLinking is an option for Manipulate, Graphics3D, Plot3D, and related functions that specifies whether to allow interactive control by external controllers.

ControlsRendering is a Style option that specifies how controls should be rendered.

CoordinatesToolOptions is an option for Graphics that gives values of options associated with the Get Coordinates tool.

CornerNeighbors is an option for various array and image processing functions that specifies whether diagonally adjacent corners should be considered neighbors of particular ...

CurveClosed is an option for JoinedCurve that specifies whether individual curve components should be closed curves.

Dilation[image, ker] gives the morphological dilation of image with respect to the structuring element ker.Dilation[image, r] gives the dilation with respect to a range r ...

FieldSize is an option for InputField, PopupMenu, and related functions that specifies the size of the field allowed for input or contents.

FindCurvePath[{{x_1, y_1}, {x_2, y_2}, ...}] gives an ordering of the {x_i, y_i} that corresponds to one or more smooth curves.

FourierSequenceTransform[expr, n, \[Omega]] gives the Fourier sequence transform of expr.FourierSequenceTransform[expr, {n_1, n_2, ...}, {\[Omega]_1, \[Omega]_2, ...}] gives ...

FractionBox[x, y] is a low-level formatting construct that represents x/y in notebook expressions.