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to fail

to fail

370 2.2
Stop working properly, as a machine or part
  • verb
  • /feɪl/
translation icon : dejar de funcionar
  • Upstream flood control dams failed to contain the excess water.
  • systems fail
  • controls fail
  • access fails

So that's why zeolites, that's where they fail, real flue gas conditions.

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Examples

  • Rotator cuff tears are frequently managed nonoperatively; however, when conservative management fails, surgery is indicated.

    Academic text (2017)
  • When the power goes out and these modern conveniences fail, Americans are incapacitated.

    Academic text (2008)
  • Well, they say that it's failed, that it's not working.

  • You know, the system failed you, just like it failed me.

  • See, once the engines failed, the original route of the ship changed.

  • I admit it, the plan failed.

  • Preliminary readings have failed to identify the nature of the material.

  • This stretcher has failed and must now be replaced.

  • We identify reasons that sensors fail and how these failures can be minimized or avoided.

    Academic text (2013)
  • The old computer failed during the presentation, causing all the slides to disappear.

Synonyms

to die
vsto fail
498 4.6

To stop working, often suddenly

is the general idea of stopping without implying permanence
to break down
vsto fail
194 3.2

To stop working because of a problem

is the basic idea of stopping to work rather than collapse
to go down
vsto fail
187 3.4

To stop working for a short time

is the general stop that can be temporary or permanent
to crash
vsto fail
  • Specialized
156 3.2

To stop working suddenly, especially for a computer or program

is a general stoppage not limited to sudden computer crashes
to malfunction
vsto fail
72 4.2

To stop working correctly, as a machine or device

is the general stopping of operation rather than wrong functioning
to give out
vsto fail
57 4.1

To stop working or run out so nothing is left

is about stopping operation rather than being exhausted or spent
to cut out
vsto fail
45 4.1

To stop working suddenly

is the broader concept of work stopping, not only sudden cuts
to go bad
vsto fail
  • US
33 3.5

Stop working and need repair

is the plain stopping of operation without implying deterioration
to conk out
vsto fail
  • Informal
7 8.1

To stop working suddenly or to fall asleep because of tiredness

is the neutral term for stopping rather than casual sudden failure
to panic
vsto fail
  • Specialized
1 8.2

When a program finds a big problem it stops and will not work

is the ordinary stopping of operation, not the technical abort reaction
to fritz
vsto fail
  • Informal
1 8.0

To stop working properly, often about machines

is the neutral description without informal or slang tone
to abend
vsto fail
  • Specialized
9.6

To stop a computer program suddenly because of an error

is the wider notion of stopping that applies beyond computing errors

Antonyms

1.3

To do a task or duty

441 2.6

To work in a particular role or job

Idioms

To feel so surprised or moved that you cannot find words to say

To be unable to say anything because you feel very surprised or moved

Phrasal Verbs

Always make the same thing happen

Not make people think something is good or special

To always make people laugh

Compounds

fail-safe
  • Specialized
11 5.0

A device or system that makes a machine go to a safe state if it breaks

fail-safe
  • Specialized
3 5.6

Designed to work safely if something goes wrong

How Functional

to operate
506 2.8
to function
441 2.6
to fail
370 2.2

Surface Forms

fail infinitive
failed past
failed past participle
failing present participle
fails third person singular

Etymology

Fail comes from old words like fallere, which meant 'to lack' or 'miss', and this idea is still used today. That's why when a machine fails it 'stops working' — it has a 'fault' or is missing something it needs.