a person who is a member of a group, organization, society, etc.
a person belonging to a limited circle of persons who understand the actual facts in a situation or share private knowledge: Insiders knew that the president would veto the bill.
a person who has some special advantage or influence.
a person in possession of corporate information not generally available to the public, as a director, an accountant, or other officer or employee of a corporation.
The family behind Sotto Sotto says that they plan to rebuild, but an insider tells me it may be a while.
The Fiery Death of Sotto Sotto, Toronto’s Celebrity Hotspot|Shinan Govani|December 30, 2014|DAILY BEAST
“Ben, who was as cunning and seductive as Diane, really wooed Diane,” says an insider.
Katie Couric on Diane Sawyer: 'I Wonder Who She Blew This Time'|Lloyd Grove|August 27, 2014|DAILY BEAST
This time around, though, Burnham was partnering with an insider.
Lake Bacon: The Story of The Man Who Wanted Us to Eat Mississippi Hippos|Jon Mooallem|August 10, 2014|DAILY BEAST
“Kate had a huge go at him and told him he needed to behave,” an insider told The Sun.
Kate Moss Scolds Justin Bieber at Riccardo Tisci's Birthday Bash; Kate Middleton Makes Vanity Fair’s ‘Hall of Fame’|The Fashion Beast Team|August 6, 2014|DAILY BEAST
INSIDER TIP: Anvil is not for the faint of wallet: fresh ingredients set imbibers back $8-$12 per cocktail.
Foodie Heaven in Houston|Michele Meyer|July 10, 2014|DAILY BEAST
There are many other opportunities the Washington "insider" of speculative turn may use to advantage.
Frenzied Finance|Thomas W. Lawson
Hereafter, for at least seven years, the Federation was an "insider" in the national government.
A History of Trade Unionism in the United States|Selig Perlman
A triangular opening faced towards the bows of the ship, so that the insider commanded a complete view forward.
Moby Dick; or The Whale|Herman Melville
If the insider keeps his eyes wide open and waits long enough his chance will come.
Stories of Our Naval Heroes|Various
But then, you know, the insider sometimes has a better chance than the outsider.