group of people who interact with each other and share similar interests

A clique is a small group of people who like the same things. Sometimes, people use the word clique to talk about groups of young people. The word is also used to talk about groups of adults, usually groups of politicians.

In a clique there are leaders and followers. A clique may also have people they do not like. Such people are called outcasts. The outcasts were followers, then they were not liked.