insider
US /ɪnˈsaɪ.dɚ/
UK /ɪnˈsaɪ.dɚ/
1.
内部人士, 知情者
a person within a group or organization, especially someone who has special knowledge or access to information not available to outsiders
:
•
As an insider, she knew all the secrets of the company.
作为一名内部人士，她知道公司的所有秘密。
•
The police suspect an insider helped the thieves.
警方怀疑有内部人士帮助了窃贼。