It blocks passage of fish from one river section to the next.

The youth knew another such face blocked the passage behind him.

It blocked the passage, and the water began to rise.

After a while he tried to follow and a guard blocked his passage.

One soldier stood in the middle of the road, blocking their passage.

Another car had raced up behind him and stopped, blocking his passage.

But he continued to stand in the doorway, blocking her passage.

They had hoped to either win significant changes in the bill or block its passage altogether.

For that reason, they cannot legally block the passage of the constitution.

The men blocked the passage and braced themselves for the attack.