Wu sao will be described as protecting hand. It is the last line of defense in front of the body, before the attack reaches it.
encyclopaedie
The gaan sao is a hand move that reminds of a plough. It moves downwards following the orientation line.
The pak sao is discribed as a slapping hand. It's one of the more widely used moves in ving tsun. This move is an excellent preparation for the...
The jut sao is executed with the inner part of the wrist and serves as a preparation for further attacks like a punch or a fung hao.