insider

noun in·sid·er \(ˌ)in-ˈsī-dər, ˈin-ˌ\

: a person who belongs to a group or organization and has special knowledge about it

Full Definition of INSIDER

: a person recognized or accepted as a member of a group, category, or organization: as

a : a person who is in a position of power or has access to confidential information

b : one (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

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See insider defined for kids

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INSIDER Defined for Kids

noun in·sid·er \in-ˈsī-dər\

: a member of a group or organization who has information about it

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