To change the course of a situation; to remedy or correct an undesirable trend, such as ending a state of confusion or turning a deficit into a profit.

To physically turn one's body or an object in a different direction; to rotate, twist, or wrench something.

(mechanics) the state of being twisted by the exertion of forces tending to turn one end or part about a longitudinal axis while the other is held fast or turned in the opposite direction.