Confluence is a noun that means an act or process of merging.
The original meaning of confluence stems referred to a joining of rivers. With that in mind, it shouldn’t come as a surprise that the word came from a Latin word confluere (co flew AIR ay) meaning ‘flow together.’ This is helpful to know whether using confluence in the old sense or in a sense such as: the conference was thrilling to attend. I’d never before heard such a brilliant confluence of ideas.