error

error /ˈerɚ/ noun
plural errors
error
/ˈerɚ/
noun
plural errors
Britannica Dictionary definition of ERROR
1 
: something that is not correct : a wrong action or statement : mistake
[count]
[noncount]
— see also trial and error at 1trial
2 
[count] : a mistake made by a person who is playing a sport (such as baseball or tennis)

in error

1 
: not correct
2 
: in a way that is not correct

margin of/for error

— see margin

the error of your ways

◊ To see, recognize, acknowledge, etc., the error of your ways is to admit that you have been doing something wrong or behaving badly and to stop doing it.

— errorless

/ˈerɚləs/ adjective