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to close off

to close off

24 3.9
Stop people or vehicles from entering a place
  • phrasal verb
  • /kloʊs ɔf/
translation icon : cerrar
  • After the accident, they had to close off access to the bridge until it was repaired.
  • close off the flow

And so you those options are closed off in what I'm doing.

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Examples

  • We've closed off all bridge access in and out of town.

  • Try to ventilate the room to the outside and close it off from the rest of the house.

    Academic text (1997)
  • I saw that King George Street had been closed off except for emergency vehicles.

    Fiction book (1998)
  • Rather, it is a room we can actually close off with a glass door.

    Blog text (4)
  • - So how do you plan to close off the canal?

  • In a few minutes, this rear exit that makes this place seem safe, is gonna be closed off.

  • If we close off those valves, I think we got it.

  • Traffic was snarled for several hours as police closed off the scene, causing a surge of complaints from the area's tony business owners.

  • A large swathe of the campus will be closed off, including the plaza where the Free Speech Movement began in the 1960s.

  • The city decided to close off the main road for construction, preventing all traffic from entering.

Synonyms

to shut
vsto close off
1.0

To close something so it is not open

is about preventing access or flow more widely, not only containers
to close
vsto close off
1.0

To shut something so it is not open

blocks access or flow in many situations beyond simple closures
to cut off
vsto close off
620 3.8

To stop something suddenly before it is finished

covers preventing access or movement in planned or gradual ways
to shut out
vsto close off
99 3.8

To stop something from entering, being included, or being thought about

concerns physical or practical blocking of access rather than only exclusion
to enclose
vsto close off
84 3.7

Surround something completely, often with a wall or fence

is focused on preventing access but not necessarily full enclosure
to seal off
vsto close off
47 3.9

Stop people from entering or leaving an area by blocking it

is the general idea of making something inaccessible by many methods
to block off
vsto close off
23 3.8

Close a road, path or entrance so people cannot go through

prevents access or movement more generally, not only roads
to cordon off
vsto close off
20 6.3

Stop people entering or leaving an area by using police and barriers

is the broader act of blocking access beyond marked perimeters
to close up
vsto close off
15 3.7

To bring the edges of something together so there is no gap

is the general act of preventing access or flow by many means
to shut off
vsto close off
11 4.0

Prevent someone or somewhere from having contact with others

focuses on physical prevention of movement rather than only isolation
to blockade
vsto close off
9 6.0

To stop people and goods entering or leaving a place, often during war

is a general action to block access, not always total sealing
to put a lid on
vsto close off
  • US
9 6.4

To stop something from continuing or becoming known

is the plain prevention of access or movement, not only publicity control
to choke off
vsto close off
6 6.4

To stop a supply by blocking its source or flow

is the broader act of making areas or things inaccessible
to occlude
vsto close off
  • Specialized
5 8.4

Block an opening to stop the flow of liquid or air

is a general prevention of movement or entry across contexts
to block up
vsto close off
4 3.8

To stop movement through a road, pipe, or path

refers to preventing movement or access by various means
to fence off
vsto close off
4 3.7

Surround an area with a fence to stop people from entering

is a general blocking action not limited to fencing
to rope off
vsto close off
3 4.8

To keep people out of an area by putting ropes around it

is the general act of preventing movement using many barrier types
to shut away
vsto close off
3 5.5

Keep people and things in a place where they cannot leave or be seen

is about making areas or items inaccessible generally, not only hiding
to seal the container
vsto close off
1 1.9

Close something tightly so nothing can get in or out

is the broader action of preventing access or movement elsewhere
to bar off
vsto close off
  • Informal
5.6

To block a place so people cannot enter, often by putting up a fence

is a wider action of preventing movement or flow in many contexts
to inclose
vsto close off
  • Archaic
7.8

Surround something completely on all sides to shut it in

describes blocking access more generally, not only full enclosure
to obturate
vsto close off
  • Specialized
9.9

To block an opening to stop liquid or gas passing through

is the broader idea of making places inaccessible in many domains
to stopple
vsto close off
  • Archaic
9.9

To close a bottle or jar with a small plug

covers general blocking or preventing of flow in many cases
to shut in
vsto close off
5.1

Surround something completely so it cannot get out or move

is the general idea of blocking access in many ways, not only confinement
to curtain off
vsto close off
4.3

To make part of a room private by closing a curtain

is the general act of blocking access by many possible means
to separate off
vsto close off
4.2

To divide a space with a wall or curtain to make a new area

is broader, covering preventing movement or access beyond mere division
to rail off
vsto close off
7.0

To separate people or part of a place by putting up a barrier

is the wider concept of stopping movement beyond rails

Antonyms

64 2.5

Make something not closed, for example by removing a lock or cover

How Accessible

to seal off
47 3.9
to close off
24 3.9
to block
3.0
to restrict
361 3.1
to allow in
172 1.3

Surface Forms

close off infinitive
closed off past
closed off past participle
closing off present participle
closes off third person singular

Morphology

close + off

The sense 'to block or prevent access' is directly built from 'close' (to shut) plus the particle 'off' signaling separation or cutting something off, so the overall meaning is a straightforward compositional extension. This verb+particle pattern is common and predictable, so a B1 learner who knows the constituents and basic particle use would readily infer the meaning.

Etymology

Close off comes from the simple image of shutting something: close means 'to shut' and off means 'away' or 'separate', like closing a road and putting up a barrier so people cannot enter. That's why it means 'to block' or stop people from entering.