1. (河流的)汇合处，交汇处
    The confluence of two rivers is the place where they join and become one larger river.

2. 汇集;汇合
    If there is a confluence of two things, they join, combine, or come together.

1. a coming together of people

    Synonym: concourse

2. a flowing together

    Synonym: confluxmerging

3. a place where things merge or flow together (especially rivers)

    e.g. Pittsburgh is located at the confluence of the Allegheny and Monongahela rivers

    Synonym: meeting