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English definition of “insider”

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insider

noun [C]
 
 
/ɪnˈsaɪdər/
WORKPLACE someone who is part of a group, or who works for a company or an organization and therefore has special knowledge or influence: She has an insider's view of the often brutal nature of trading in the stock market. an industry insider
WORKPLACE, FINANCE someone who is in a high position in a company, or someone who owns ten or more percent of shares in a company: a company insider This form needs to be filled out by any newly appointed corporate insider.
(Definition of insider from the Cambridge Business English Dictionary © Cambridge University Press)
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