Sentence:  Every person who is not a fellow member, and every social, religious and political institution that lies outside the <WSD>sect's</WSD> domain, is portrayed as a representative of Satan's world. In our research, we found that Moonies and members of many Christian sects with similar religious and political doctrines often focus on such beliefs to the exclusion of all other thought. 
Meaning of the word marked with <WSD> tags:  A group following a specific ideal or a leader.