Some have hair that is thinning all over, while others see the center part gradually widen.

The river was gradually widening from the usual 1,500 or 2,000 yards' breadth, to two and three miles.

A wilderness which gradually widened until not a single shrub of hope was left.

The crack widened gradually as if reluctant to reveal the secret behind the door.

However, the creek gradually widened and its waters became less tumultuous.

The road gradually widened, and after a while they came upon a crossroad that was larger than their lane.

It then doubles and descends to about the starting point, gradually widening.

At first the boys were forced to proceed single file, but the tunnel gradually widened.

As the tunnel gradually widened, Nikitas pushed himself to his feet.

Later, the mine gradually widens and reaches a length of 100-120 mm.