ELI5: Explain Like I'm 5

Hypergraph

A Hypergraph is like a graph, but instead of lines connecting points, it uses 'hyperedges' to connect sets of points. Think of it like a group of friends ordering pizza together. You can tell that all of the friends are connected, but instead of having a line between each pair, it's just one line connecting them all. That line is the hyperedge.