insider
Americannoun
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a person who is a member of a group, organization, society, etc.
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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.
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a person who has some special advantage or influence.
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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.
noun
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a member of a specified group
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a person with access to exclusive information
Etymology
Origin of insider
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This 45-year-old former Fidesz party insider represents the biggest threat to Viktor Orban's rule in Hungary since he won the first of four consecutive victories in 2010.
From BBC • Apr. 1, 2026
He said the firm would adopt tough policies to tackle insider trading.
From MarketWatch • Apr. 1, 2026
It was interesting because part of what stood out to me was how hard it was to prove that these trades were made with insider information.
From Slate • Mar. 31, 2026
Politico has named Jonathan Greenberger as its new editor in chief, selecting an insider to lead the political publication and to continue to grow its footprint around the world.
From The Wall Street Journal • Mar. 29, 2026
It was information only a highly placed insider could have acquired.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
