CLOSE THE BOOK ON STH


Meaning of CLOSE THE BOOK ON STH in English

to stop doing sth because you no longer believe you will be successful or will find a solution :

The police have closed the book on the case (= they have stopped trying to solve it) .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.