The crowd round her seemed to have drawn itself back into a barrier.

In practice, this translates into a serious barrier to democracy.

It felt as if he'd formed himself into a barrier against some or all of her encouragement.

The setting sun caught the leaves, turned them into a barrier of flame.

At any point they might run into a barrier beyond their meager abilities.

Other large city projects are running into barriers, too.

Every second, he expected to find himself ramming into an invisible barrier.

The company quickly ran into a large technical barrier.

In their search, though, they've run into a barrier of their own.

The front and rear of a vehicle are crashed into a flat barrier.