/ ˈkɒnfluəns; NAmE ˈkɑːn-/ noun [ usually sing. ]
1.
( technical ) the place where two rivers flow together and become one
2.
( formal ) the fact of two or more things becoming one :
a confluence of social factors
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WORD ORIGIN
late Middle English : from late Latin confluentia , from Latin confluere flow together, from con- together + fluere to flow.