It blocked passage in or out of the doorway.

At first, she saw only blackness that blocked off much of the light.

We block, oppose or impede agreements on the environment and the punishment of war crimes.

On Tuesday, the authorities blocked all calls in or out of the compound.

In general, avoid frames that block too much of your side vision.

He pressed his lips together, as though to block of further questions, nodded his head, and stepped forward.

Some governments think the Internet is a bad thing, and block all or part of it.

The Humvees blocked the street several hundred feet north of the blast site.

I swung round to see what was up, and there behind me, in a half-circle blocking all my lines of retreat, were a dozen men.

The protesters began to block of the Criminal Court, aiming at releasing their leader.