close off

Verb (3)

1. stem the flow of“shut off the gas when you leave for a vacation”Synonyms: shut offMore general discontinue, stop
2. isolate or separate“She was shut off from the friends”Synonyms: shut offMore general separate, divideMore specific curtain off
3. block off the passage through“We shut off the valve”Synonyms: shut offblock offMore general barricade, block