insider
UK /ɪnˈsaɪdɚ/ US /ɪnˈsaɪdɚ/
noun 2
Definitions
noun
1
A person who has special knowledge about the inner workings of a group, organization, or institution.
Near-synonyms: initiate, old hand, habitué
Heavy losses were sustained in Simms Petroleum, which took a greater toll from supposed "Wall Street insiders" than from the general public.
2
A person who is within an enclosed space.
To the insider, the ceiling is like a small firmament twinkling with astral radiations.
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