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fail

1 fail /ˈfeɪl/ verb
fails; failed; failing
1 fail
/ˈfeɪl/
verb
fails; failed; failing
Britannica Dictionary definition of FAIL
: to not succeed : to end without success
[no object]
[+ object]
followed by to + verb
[no object] : to not succeed as a business : to become bankrupt
[+ object] : to not do (something that you should do or are expected to do) followed by to + verb
: to not do something
[+ object]
followed by to + verb
[no object]
[+ object] : to not do or provide something that is needed by (someone)
: to be unsuccessful in passing (an examination, a course of study, etc.)
[+ object]
[no object]
[+ object] : to decide that (someone) has not passed an examination or course of study
[no object]
: to stop working
: to lose strength : to become weak or weaker
2 fail /ˈfeɪl/ noun
2 fail
/ˈfeɪl/
noun
Britannica Dictionary definition of FAIL

without fail

used to stress that something always happens
used to stress that something will definitely happen