Meaning of BLOCK OFF

WordNet Dictionary
	Definition:		[v]  obstruct access to [v]  block off the passage through [v]  render unsuitable for passage; "block the way"; "barricade the streets"
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	Synonyms:		blockade, close off, shut off
	See Also:		bar, barricade, block, block, block off, block up, blockade, close, close up, close up, impede, impede, jam, jam, obstruct, obstruct, obturate, obturate, occlude, occlude