That explained why the boarding had felt so solid, so unlike a thin and temporary barrier.

The red-uniformed guards seemed a thin barrier against all that white.

My fingertips touched his, and the thin barrier vanished.

These were features in the rock, illuminated by the thin barrier of the rotating hoop.

Now they were separated by a thin, impenetrable barrier of decontamination fabric.

For the first time, Shade dropped all pretenses of keeping that thin emotional barrier between them.

The dark outside was now nearly total, only a thin barrier of light escaped from the outpost itself.

The railing is a thin concrete barrier about three and a half feet high.

Beyond that thin barrier was another world waiting to be explored.

Fortunately, this was only a thin barrier, with more hard land beyond.