Walkover: A gymnastics floor and beam move where a gymnast moves from a standing position through a handstand position to a standing position while "walking" through the air with the feet. Starting from standing on one foot, go through inverted split and one footed bridge positions to return to stand. Can be done forward and backward. 

Wells: A men’s parallel bar named after Trent Wells.  The skill is a giant swing backward with in-locate forward.  The skill has been rated by the F.I.G. as a ”D” level skill. 

Whip Back: A backwards somersaulting tumbling movement similar to a back handspring, except that the hands don't touch the floor.  Whips are used as both direct and indirect connections into other tumbling skills. 

White: An uneven bar skill named after Morgan White. It consists of a front stalder into an L-grip to handstand with ½ turn in handstand.  It has been rated by the FIG as a D level skill and its FIG number is 6.403.
 

Gymnastics Dictionary