Components

Generally speaking, a component is just a structure for the data that we associate with each entity. So, while the Component is where the entity derives all of the meaning to distinguish itself from any other UUID, the Component itself has no bearing outside of the consequences of the entity to which it belongs.
In this way, everything from latent properties, to feature-rich behaviors, to full-blown subroutines can be encapsulated safely within the scope of a given entity.