Insider

/ˈɪnˌsaɪ.dɚ/

Meaning & Definition

noun

A person who has access to special or confidential information about a company, organization, or situation, often due to their position or experience.

As an insider, she had valuable insights into the company's upcoming projects.

A member of a particular group or organization, especially one who is considered to have privilege or power within it.

The insider's perspective on the club's dynamics helped reveal the underlying issues.

A person with knowledge about a particular field or area, often giving them a competitive advantage.

His insider knowledge of the market trends allowed him to make profitable investments.

Etymology

From in + sider, meaning 'one who is within'.

Common Phrases and Expressions

insider information

Confidential or privileged information that gives someone an advantage.

insider trading

The illegal practice of trading on the stock exchange to one's own advantage through having access to confidential information.

industry insider

A person with knowledge and expertise within a specific industry.

Related Words

whistleblower

A person who informs on a person or organization engaged in illicit activity.

confidant

A person with whom one shares a secret or private matter.

Slang Meanings

A person who has inside information.

That guy is an insider; he knows everything about the industry!

Someone who belongs to a secretive or exclusive group.

She's an insider in the fashion world.