seal off

1. 1.

   make tight; secure against leakage

   “seal the windows”

   Synonymsseal

   Broaderclose

   Narrowerresealwaterproofcaulkpack
2. 2.

   impose a blockade on

   Synonymsblockade

   Broaderbesiege

Questions about seal off

What does seal off mean?

seal off means "make tight; secure against leakage". That is the primary sense; the word has 2 in total, listed in full on this page.

What is another word for seal off?

Close synonyms include seal, blockade. 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 seal off a common word?

seal 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.