ScriptSizeMultipliers is an option for Style that specifies how much smaller to render each successive level of subscripts, etc.
SectorSpacing is an option to PieChart and related functions that specifies radial spacing of sectors.
SelectedNotebook[] gives the currently selected notebook in the front end.
SelectionEvaluateCreateCell[notebook] takes the current selection in a notebook and creates a new cell containing the result obtained by evaluating the contents of the ...
SequenceHold is an attribute that specifies that Sequence objects appearing in the arguments of a function should not automatically be flattened out.
SetAlphaChannel[image] adds a fully opaque alpha channel to image.SetAlphaChannel[image, a] sets the opacity of all pixels to a.SetAlphaChannel[image, aimage] sets the alpha ...
SmithWatermanSimilarity[u, v] gives a number representing the Smith\[Dash]Waterman similarity between strings or vectors u and v.
SoundVolume is an option to Sound and SoundNote and related functions that specifies the relative volume of the sound produced.
SpanFromBoth is a symbol that can appear at a particular position in a Grid or related construct to indicate that the corresponding position is occupied by a spanning element ...
SpellingOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for notebooks that specifies settings for spell checking.