n.
Pronunciation: ( ˌ )in- ' s ī -d ə r, ' in- ˌ
Function: noun
Date: 1848
: 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