block off

Verb	1.	block off - obstruct access to Synonyms: blockade
	2.	block off - render unsuitable for passage; "block the way"; "barricade the streets"; "stop the busy road" Synonyms: barricade, block, block up, blockade, bar, stop
	3.	block off - block off the passage through Synonyms: close off, shut off

bar, barricade, block, block up, blockade, close, close off, close up, impede, jam, obstruct, obturate, occlude, shut off, stop