trick; deceit; fraud; stratagem.-a violent twist, or a pull with twisting.-a sprain; an injury by twisting, as in a joint.-means; contrivance.-an instrument, often a simple bar or lever with jaws or an angular orifice either at the end or between the ends, for exerting a twisting strain, as in turning bolts, nuts, screw taps, etc.; a screw key. many wrenches have adjustable jaws for grasping nuts, etc., of different sizes.-the system made up of a force and a couple of forces in a plane perpendicular to that force. any number of forces acting at any points upon a rigid body may be compounded so as to be equivalent to a wrench.-to pull with a twist; to wrest, twist, or force by violence.-to strain; to sprain; hence, to distort; to pervert.