The term IT MAY TURN can be solved by the four-letter word 'TIDE'. The term 'TIDE' is used to refer to the regular rise and fall of the ocean's surface caused by the gravitational pull of the moon and sun. It is also used to describe the current or flow of any body of water, such as a river or lake. In addition, the term 'TIDE' is often used to refer to a period of time, such as a turning point or a change in direction.