insider

noun

in·​sid·​er (ˌ)in-ˈsī-dər How to pronounce insider (audio)
ˈin-ˌsī-
Synonyms of insidernext
: a person recognized or accepted as a member of a group, category, or organization: such as
a
: a person who is in a position of power or has access to confidential information
b
: a person (such as an officer or director) who is in a position to have special knowledge of the affairs of or to influence the decisions of a company

Examples of insider in a Sentence

Political insiders say that she is planning to run for president. The book gives fans an insider's view of Hollywood.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Magyar, a former insider in Orbán's nationalist Fidesz party, burst onto Hungary's political scene in 2024 after breaking with his political community and quickly forming the center-right Tisza party. Arkansas Online, 16 Feb. 2026 And in 2025, to celebrate the Air Max 95’s 30th anniversary, Nike went all-in with a true-to-OG Big Bubble redesign, which has been universally praised by industry insiders and consumers alike. Riley Jones, Footwear News, 14 Feb. 2026 Sign up for Dining with azcentral and get insider recommendations and must-know news. Becky Bartkowski, AZCentral.com, 14 Feb. 2026 For too long, Austin insiders have tried to decide who represents our communities. Fort Worth Star-Telegram, 14 Feb. 2026 See All Example Sentences for insider

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of insider was in 1848

Browse Nearby Words

Cite this Entry

“Insider.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insider. Accessed 16 Feb. 2026.

Kids Definition

insider

noun
in·​sid·​er (ˈ)in-ˈsīd-ər How to pronounce insider (audio)
: a person who is a member of a special group or organization

Legal Definition

insider

noun
in·​sid·​er
: a person who is in a position of power or has access to confidential information: as
a
: one (as an officer, director, employee, relative, or owner of more than 10% of the corporation's stock) who is in a position to have special knowledge of the affairs of or to influence the decisions of a company
b
: an individual (as a relative or an influential party) or entity (as a corporate affiliate) having a close relationship with a debtor such that transactions are not made at arm's length and are subject to closer scrutiny than the transactions of those dealing at arm's length

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