He had used his guise of black to pass by various barriers.

The two streets are immediately next to each other, separated only by concrete barriers.

At street level, pedestrians are blocked from crossing by concrete barriers.

It is clear that, in these cases, psychological factors and people's prejudices may be much greater obstacles than those created by physical barriers.

According to industry experts, dispute resolution is a big obstacle to joint projects, one made more difficult by barriers of language and distance.

Lovers part and reach to each other or are separated by barriers of filmy fabric.

And they have certainly demonstrated the, er, utility of being able to reach places cut off to our regular forces by political barriers.

Entrepreneurs should be free to compete on world markets, unimpeded by bureaucratic barriers.

Such developments have been far slower in Britain, held up in part by regulatory and tax barriers.

The synagogue in Oslo is under continuous surveillance and protected by barriers.