noun
[ usually sing. ] an action that is not allowed or not recommended and that may cause a bad result :
One false move and the bomb might blow up.
noun
[ usually sing. ] an action that is not allowed or not recommended and that may cause a bad result :
One false move and the bomb might blow up.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005