confluence
n.the place where two or more rivers meet and flow together. It also describes a situation where different things or ideas come together at the same time.
n.the junction of two or more flowing bodies of water; by extension, the act of merging or coming together of distinct elements or ideas.
“The city was built at the confluence of two major rivers.”
“A confluence of factors, including low interest rates and high demand, led to the sudden housing boom.”
“The festival represents a unique confluence of traditional folk music and modern electronic production, attracting a diverse audience from across the continent.”
Often used with the preposition 'of' to describe the elements that are merging.
“Chinese authorities said a barrier lake at the confluence of the Tsogyal and Purupqiangzangbu rivers was overflowing and could burst.”
“The recent confluence of record visitor volume, fluctuating boundaries, climate anomalies and staffing shortages is fundamentally increasing the risks of owning, acquiring or starting a business in a gateway economy.”