( informal ) used to emphasize that what you are going to say is the truth :
Take it from me—he'll be a millionaire before he's 30.
( informal ) used to emphasize that what you are going to say is the truth :
Take it from me—he'll be a millionaire before he's 30.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005