fail

/feɪl/
verbBeginner
general

to not achieve the desired result or meet a standard

The project failed due to lack of funding.

The project did not succeed because it ran out of money.

He failed to convince his boss.

He was unable to persuade his boss.

💡

Often used with 'to' to indicate a specific action that was not completed.

💻Technology
technical

to stop functioning or working properly

The server failed during peak hours.

The server stopped working when it was most needed.

💡

In technology, this often refers to hardware or software malfunctions.

Collocations

fail tonot succeed in doing somethingfail atnot be good at somethingfail innot succeed in a particular area

Synonyms

Antonyms

Related Phrases

fail-safephrase
a mechanism that prevents failure
fail tophrase
not succeed in doing something

💡Pro Tip

Common Usage

'Fail' is often used with 'to' to indicate a specific action that was not completed.

Gold Rule

Formal vs. Informal

In formal contexts, 'fail' is often used with 'to' (e.g., 'fail to complete'), while in informal contexts, it can be used alone (e.g., 'The test was a fail').

📖Word Origin

From Middle English 'faillen', from Old French 'faillir', from Latin 'fallere' meaning 'to deceive'.

📝Usage Notes

Can be used as a noun (e.g., 'a fail') in informal contexts to describe a mistake or failure.

Word Breakdown

fail
not succeed
root
English Dictionary