The scissors gaan sao is to be considered equally as defensive or offensive move. It protects the whole upper body from waist to head.
encyclopaedie
As kwan sao, we describe a move composed of a tan sao and a deep bong sao. It is a defensive as well as an offensive move.
Man sao is the searching hand. It serves as front line to take the first attacks of the opponent. The typical ving tsun guard position is man sao...
The fung hao is an attack executed with the side of one's hand that will generally be directed to the neck of the opponent. The fung hao is...
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.
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.
What we describe as jum sao is the sinking elbow. This minimal move protects the under part of the upper body like belly and liver.
The gaan sao is a hand move that reminds of a plough. It moves downwards following the orientation line.