block off

1. 1.

   obstruct access to

   Synonymsblockade

   Broaderobstruct
2. 2.

   render unsuitable for passage

   “block the way”

   “barricade the streets”

   “stop the busy road”

   Synonymsbarricadeblockblockadestopblock upbar

   Broaderobstruct

   Narrowershut offclose
3. 3.

   block off the passage through

   “We shut off the valve”

   Synonymsshut offclose off

   Broaderbarricade

Questions about block off

What does block off mean?

block off means "obstruct access to". That is the primary sense; the word has 3 in total, listed in full on this page.

What is another word for block off?

Close synonyms include blockade, barricade, block, blockade, stop. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is block off a common word?

block off is banded "Familiar" — widely understood, used when the subject calls for it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.