in-group/ˈɪn gru:p; `ɪnˌɡrup/ n(usu derog 通常作贬义) group within an organization or in society that behaves in an exclusive way and gives favoured treatment to its own members; clique 小圈子, 自己人团体, 小集团（有排他性质、 对自己成员优予对待之组织或社团）.
牛津英汉双解词典