AnchoredSearch is an option for Find and FindList that specifies whether the text searched for must be at the beginning of a record.
AngleBracket[x, y, ...] displays as \[LeftAngleBracket]x, y, ...\[RightAngleBracket].
AnimationCycleRepetitions is an option for cells that specifies the number of times a given animation cycle should be repeated.
Assumptions is an option for functions such as Simplify, Refine, and Integrate that specifies default assumptions to be made about symbolic quantities.
BoxMargins is an option for AdjustmentBox objects that specifies the margins to leave around the contents of the box.
BracketingBar[x, y, ...] displays as |x, y, ...|.
ButtonData is an option for the low-level function ButtonBox that specifies the second argument to give to the ButtonFunction for the button when the button is active and is ...
ButtonMinHeight is an option for the low-level function ButtonBox that specifies the minimum total height in units of font size that should be allowed for the button.
CellGroupingRules is an option for cells that specifies the rules used for grouping a cell.
CircleTimes[x] displays as \[CircleTimes]x.CircleTimes[x, y, ...] displays as x\[CircleTimes]y\[CircleTimes]....