to turn; to twist; esp., to twist or extort by violence; to pull of force away by, or as if by, violent wringing or twisting.-to turn from truth; to twist from its natural or proper use or meaning by violence; to pervert; to distort.-to tune with a wrest, or key.-the act of wresting; a wrench; a violent twist; hence, distortion; perversion.-active or moving power.-a key to tune a stringed instrument of music.-a partition in a water wheel, by which the form of the buckets is determined.