/ɪnˈsaɪdə(r) ||; ɪnˈsaɪdɚ/noun [C] a person who knows a lot about a group or an organization because he/she is a part of it 知情人，了解内幕者，权威人士，圈内人（指有关团体或组织的成员）: The book gives us an insider's view of how government works. 这本书使我们从内部人员的角度了解政府的运作过程。