Verb: block off
- Obstruct access to
"Protesters blocked off the entrance to the building";
- blockade
- Block off the passage through
"We block off the valve";
- shut off, close off
- Render unsuitable for passage
"block off the streets";
- barricade, block, blockade, stop, block up, bar
Derived forms: blocks off, blocked off, blocking off
Type of: block, close up, impede, jam, obstruct, obturate, occlude