The phrase "anyone in the know" is correct and usable in written English.
It can be used to refer to individuals who possess specific knowledge or information about a particular subject or situation.
Example: "Anyone in the know understands the importance of networking in this industry."
Alternatives: "those who are informed" or "people with insider knowledge".
It's true, of course, that anyone in the know knows how to get the numbers they need.
Anyone in the know tries to conceal ownership through labyrinthine combinations of anonymous shell companies and arrangements such as trusts and foundations.
But anyone in the know would have been unlikely to bet against The Tsunami.After the contest, his belly grossly distended, Mr Kobayashi was asked what next.
Ask anyone in the know, and they'll tell you the importance of Dernbach – who is approaching a return from a stress fracture – in the county's recovery.
The content of the WikiLeaks cables cannot have surprised anyone in the know, least of all the foreign intelligence agencies that must long have been reading them.
Society members fondly recall the portrait gallery in the ground-floor meeting hall where annual meetings were convened, and the paneled two-story library and fireplace on the upper floor, pictured above, where anyone in the know could comfortably while away the time poring over historic gems.
"I told her, 'you must have the thickest skin of anyone in the known universe,' " said Harold O. Levy, interim schools chancellor, wearing a tuxedo, a vest of kimono silk and a fish-shaped tie.
To anyone not in the know, the prospect might have seemed stern if not altogether forbidding: a full evening of a cappella singing by the Moscow Sretensky Monastery Choir.
She would later be found dead at her home and her family, record label, and anyone else in the know kept quiet.
(PL) Mr President, anyone not in the know might come to the conclusion that the European Parliament is behaving irresponsibly by proposing a budgetary increase.
Rarely did anyone in the room know more than he about a given policy's details or implications when it was discussed".
