Verb: close off
- Stem the flow of
"close off the gas when you leave for a vacation";
- shut off
- Isolate or separate
"They closed off the crime scene with police tape";
- shut off
- Block off the passage through
"We close off the valve";
- shut off, block off
Derived forms: closed off, closes off, closing off
Type of: bar, barricade, block, block off, block up, blockade, break, break off, cease, discontinue, divide, give up, lay off, quit, separate, stop, surcease [archaic]