Definition of "wide"
Having a large physical extent from side to side.
Large in scope.
Operating at the side of the playing area.
(speaking of the ball) that bounces off the authorized court limits, referring to the horizontal dimension (and therefore is out).
Away from a given goal.
A ball that passes so far from the batsman that the umpire deems it unplayable; the arm signal used by an umpire to signal a wide; the extra run added to the batting side's score.