noun
( BrE ) a note, either in writing on an official record, or in sb's mind, of sth you have done or said that makes people think badly of you :
She earned a black mark for opposing company policy.
The public scandal was a black mark against him.
noun
( BrE ) a note, either in writing on an official record, or in sb's mind, of sth you have done or said that makes people think badly of you :
She earned a black mark for opposing company policy.
The public scandal was a black mark against him.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005