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to block up

to block up

4 3.8
To stop movement through a road, pipe, or path
  • phrasal verb
  • /blɑk ʌp/
translation icon : bloquear
  • After the storm, fallen trees completely blocked up the road, making it impassable.
  • blocked up the doorway
  • block up the hall
  • blocked up the windows

So I once it's not funny, but once I bruised because I wanted to get some shit up my nose, it was all blocked up.

Examples

  • Many of its arched windows were blocked up, its balconies crumbling.

    Academic text (2012)
  • Right, sir, well traffic round Westminster's all blocked up, no chance, you'll have to take a tube.

  • As soon as we're gone, block up this run and get everyone back behind the wall.

  • Block up both ends of the street.

  • Or it could block up your main drain for the entire house.

    Blog text (30)
  • Flushing the wrong item just once could possibly block up the toilet.

    Blog text (30)
  • They blocked it up with stones.

    Fiction book (1996)
  • There were so many fans that the campers were beginning to block up the bus lane and disrupt the people of the city.

    Blog text (3)
  • Block up the river.

  • The firefighters blocked up the entrance of the building to prevent anyone from entering.

Synonyms

to block
vsto block up
3.0

To stop movement, access, or progress

is more focused on physically making a space impassable by placing objects
to obstruct
vsto block up
119 5.1

To block a path or view

usually emphasizes hindering passage or view rather than complete physical sealing
to barricade
vsto block up
42 4.8

To stop people from entering a place by putting up a barrier

is used more generally for making passage impossible, not only defensive barriers
to close off
vsto block up
24 3.9

Stop people or vehicles from entering a place

is about fully preventing movement through a space by placing objects
to block off
vsto block up
23 3.8

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

focuses on making movement along a space impossible rather than general closure
to clog
vsto block up
21 3.2

To block a pipe or passage so flow stops

often implies gradual filling that slows flow rather than immediate full sealing
to block out
vsto block up
14 3.0

To stop light, sound, or air from coming in

focuses on stopping sensory or airflow specifically rather than general passage of people
to blockade
vsto block up
9 6.0

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

involves large scale sealing often enforced, not just a small obstruction
to clog up
vsto block up
9 3.7

To block a drain or road so things cannot move through it

is used for blockages due to buildup rather than by placing a clear barrier
to bar
vsto block up
7 2.8

To block a path or entrance by placing something across it

uses any object to make a space fully impassable by position
to choke off
vsto block up
6 6.4

To stop a supply by blocking its source or flow

focuses on closing the origin of flow rather than making a passage physically impassable
to occlude
vsto block up
  • Specialized
5 8.4

Block an opening to stop the flow of liquid or air

is more technical, focusing on sealing small channels against fluid or gas flow
to dam up
vsto block up
3 4.6

To stop the flow of water or feelings by building a wall

is specific to stopping fluid flow, especially water, rather than general passages
to stop up
vsto block up
1 4.6

Block a hole, pipe, or crack so nothing can pass through

means completely fill a passage to make movement impossible rather than gentle narrowing
to choke up
vsto block up
1 5.8

To block a pipe or drain so water cannot pass through

refers to making a space impassable by placing objects rather than internal filling
to congest
vsto block up
1 5.3

To block or fill a place so things cannot move through it

often suggests crowding or overfilling as the cause rather than an object placed across
to chock
vsto block up
1 7.5

To stop something from moving by putting a block against it

focuses on securing single objects from motion rather than closing a passage
to bar off
vsto block up
  • Informal
5.6

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

describes any action that makes a space completely impassable by placement
to obturate
vsto block up
  • Specialized
9.9

To block an opening to stop liquid or gas passing through

is used for formal or technical sealing rather than ordinary physical barriers
blockading
vsto block up
7.8

Surrounding a port with ships to stop ships entering or leaving

is similar but usually stresses naval or organized surrounding actions
to crap up
vsto block up
  • Offensive
9.9

To become blocked or cause a block by dirt and grease

is informal and highlights dirty or unwanted buildup rather than deliberate placement

Antonyms

1.5

To remove people or things from a place

3 3.1

Remove something that stops a pipe, machine, or blood vessel from working

How Blocked

to seal
457 2.5
to block up
4 3.8
to plug
66 1.9
to clog
21 3.2
to obstruct
119 5.1
to restrict
361 3.1

Surface Forms

block up infinitive
blocked up past
blocked up past participle
blocking up present participle
blocks up third person singular

Morphology

block + up

The meaning 'to make something completely obstructed' is transparently built from 'block' (to stop or obstruct) plus the particle 'up', which here signals completion or intensification. This verb+particle composition follows a common, predictable English pattern that a B1 learner who knows the constituents would readily infer.

Etymology

Block up comes from the simple image of putting something across a road, pipe, or opening so nothing can get through. If you block a path or pile things up in a chimney, you stop the way, so it now means 'to stop anything from getting through'.