ConwayGroupCo2[] represents the sporadic simple Conway group Co_2.
Coproduct[x, y, ...] displays as x\[Coproduct]y\[Coproduct]....
CounterFunction is an option for counters that specifies the symbols used to display the value of the counter.
CounterStyleMenuListing is an option for cells that specifies what counter styles are listed in the Counter popup menu of the Create Automatic Numbering Object dialog box.
CreateIntermediateDirectories is an option for CreateDirectory and related functions that specifies whether to create intermediate directories in a directory path specified.
CurrentImage[] returns the current image captured from a connected camera.CurrentImage[n] returns n sequential image frames as a list.
DefaultDuration is an option to Animate and related functions that specifies the default total duration of the animation in seconds.
DefaultNaturalLanguage is an option for character selections that specifies the language used when checking the spelling of a word in a human natural language selection.
DefaultNewCellStyle is a notebook option which specifies the default style to use for new cells created in the notebook.
Deletable is an option for Cell that specifies whether the cell can be deleted interactively using the front end.