One wall of the incident room had become known as 'the Map'.

And the longer the kiss went on, the thinner the wall between them became.

By the 1980s, the wooden east wall had become unsound.

In some places, walls were becoming so thin there was a danger of structural collapse.

As the walls became lower, they also became more vulnerable to assault.

He kept glancing in that direction, as though the wall might have suddenly become transparent.

Given the lack of work though, plain walls and such become depressing over time.

The walls later became of stone, but it made underground life even tougher.

The wall surrounding it has become loose and broken down at many places.

The walls in his house became the canvas and charcoals got the jobs as brushes.