Moves or extends the ending character position of a range to the end of the nearest specified text unit.
This method returns a value that indicates the number of character positions the range or selection was moved or extended (movement is forward in the document). If the both the starting and ending positions for the range or selection are already at the end of the specified unit, this method doesn't move or extend the range or selection. For example, if the selection is at the end of a word and the trailing space, the following instruction doesn't change the selection ( char equals 0 (zero)).
char = Selection.EndOf(Unit:=wdWord, Extend:=wdMove)
The following arguments are optional
Extend - Specifies whether to move or extend the end of the range. If the value is wdMove, both ends of the range or selection object are moved to the end of the specified unit. If wdExtend is used, the end of the range or selection is extended to the end of the specified unit. The default value is wdMove