The road now had become narrower and the turnings more frequent.

The steps had become narrower and more steeply spiral than before.

It seems that our vocabulary has become narrower and less accurate.

All these clefts exhibit considerable variations in width, but become narrower as they proceed westwards.

He remarked that through a slow pressure of the ice the basin threatened to become narrower.

Margins in improvements in performances have become narrower and narrower as athletes approach the limit of human achievement.

The annual rings of growth are for many years quite wide, but later they become narrower and narrower.

The path, become narrower, rougher and more winding, plunged sharply, steeply downwards, running perilously along the cliff's edge.

In fact, "it appears," in the words of Professor Milne, "as if the whole Neo valley had become narrower."

Nesting loops in this way enabled the chromosome to become narrower and prevented the initial loops from growing large enough to mix or interact.

It is likely that as we advance the river will become narrower, and we would be an easy target for a shot from the bank.

The glade became narrower as they neared the entrance to the grotto.

The path now became narrower and overhung with wandering branches and creepers.

As the roads became narrower it was impossible to pass another vehicle.

The valley became narrower, we rose higher, and the cliffs were cavernous.

Conviction was laying hold upon me, and the circle was becoming narrower.