Confluence
Part of speech: noun
Definition: The place where two rivers, streams, or other continuously flowing bodies of water meet and become one, especially where a tributary joins a river. The act of combining which occurs at the place where rivers and the like meet. A convergence or combination of forces, people, or things.
Example sentence: What amplifies the transformational power ahead is the confluence of two major technological currents today: the universal access to mobile computing and the pervasive use of social networks.
Conflux
Part of speech: noun
Definition: A merger of rivers, or the place where rivers merge.A convergence or moving gathering of forces, people, or things.