A large control tank malfunctioned vs Failed

When to use each in English, with meaning, register, and examples.

A large control tank malfunctioned

Beyond 10,000 (less common)

Failed

Top 1,000 (very common)B2adjective
Most common: Failed
 A large control tank malfunctionedFailed
Pronunciation🇬🇧 //ə lɑːdʒ kənˈtrəʊl tæŋk mælˈfʌŋkʃənd//🇺🇸 //ə lɑrdʒ kənˈtroʊl tæŋk mælˈfʌŋkʃənd//🇬🇧 /["/feɪld/"]/🇺🇸 /["/feɪld/"]/
MeaningA big tank used for control stopped working correctly.not successful
ExampleThe large control tank malfunctioned during the test run.a failed writer
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 1,000 (very common)
CEFR level-B2
Part of speechadjective
Collocationscontrol tank, tank malfunction, large tank, malfunctioned equipmentfailed attempt, failed experiment, failed project, failed to meet, failed grades
Antonyms-succeeded, achieved, triumphed
Common mistakesConfused with 'tank' as in a military vehicle., Misunderstood 'malfunctioned' as a simple 'broke'.Confusing 'failed' with 'fail' (incorrect verb tense), Using 'failed' with the wrong object (e.g., 'failed the test' instead of 'failed in the test'), Overusing it in informal contexts where lighter terms would be more appropriate
Usage notesUse in technical contexts involving machines or systems. Avoid in casual conversation.Use 'failed' to describe attempts that did not succeed. It's neutral and can be used in various contexts, from academic to casual conversations.

See it in real clips

A large control tank malfunctioned
Failed

Frequently asked questions: A large control tank malfunctioned vs Failed

What's the difference between A large control tank malfunctioned and Failed?

A large control tank malfunctioned: A big tank used for control stopped working correctly. Failed: not successful

Which is more common: A large control tank malfunctioned and Failed?

Failed is the most common in everyday English.

Can you show an example of each?

A large control tank malfunctioned: The large control tank malfunctioned during the test run. Failed: a failed writer

Can I use A large control tank malfunctioned and Failed interchangeably?

Not always. A large control tank malfunctioned and Failed are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.