Clique

A clique is a group within a larger network where every member is directly connected to every other member. In social terms, it's like a close-knit group of friends who all know each other well. In graph theory, a clique is a set of nodes where each node shares a direct connection with all others in the group. Identifying cliques helps understand tightly interconnected communities, whether in social networks, collaboration groups, or other systems. Essentially, a clique represents a highly interconnected subgroup where everyone is mutually connected.