confluence /ˈkɑːnˌfluːwəns/ noun Learner's definition of CONFLUENCE
[singular]
1
technical : a place where two rivers or streams join to become one(河流或溪流的)汇流处,汇合处,交汇处 2
somewhat formal : a situation in which two things come together or happen at the same time(事物的)汇合,汇集—
usually + of