Английский словарь американских идиом - in the know

{adj. phr.}, {informal} Knowing about things that most people do not know about; knowing secrets or understanding a special subject. * /Tina helped Professor Smith make some of the exam questions, and she felt important to be in the know./ * /In a print shop, Mr. Harvey is in the know, but in a kitchen he can't even cook an egg./ Compare: GET WISE. Contrast: IN THE DARK.