/ ɪnˈsaɪdə(r); NAmE / noun
a person who knows a lot about a group or an organization, because they are part of it :
The situation was described by one insider as 'absolute chaos'.
—compare outsider
/ ɪnˈsaɪdə(r); NAmE / noun
a person who knows a lot about a group or an organization, because they are part of it :
The situation was described by one insider as 'absolute chaos'.
—compare outsider
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005